Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties

142 Doctors Online
Doctor Image
Dr. Andrew Rynne

Family Physician

Exp 50 years

I will be looking into your question and guiding you through the process. Please write your question below.

What causes persistent low grade fever when blood test reports are normal?

Answered by
Dr. Erion Spaho

Neurologist, Surgical

Practicing since :2004

Answered : 3150 Questions

Posted on Mon, 7 May 2018 in Headache and Migraines
Question: 1. low-grade fever (99.3-100.4) for 5 weeks (since 3rd week of October). never goes away for 48 hours Drs. cannot explain it. They have said that they don't think the mouth sores are related to the fever. Typically it is WNL in the AM only to go up in the afternoon or evening or after exertion like goes to the grocery.
2. "Shingles of the mouth Dx November 4th. fever noted at that time for the first time. I was surprised because other than my mouth, I felt fine. More than 30 canker sores in my mouth. 2 rounds of Antiviral meds x 12 days. Severe, deep tongue pain lingered and I was put on Gabapentin for 2 weeks, and The tongue is almost back to normal. I cannot elicit tongue pain even with extreme movement. Most of the mouth sores -80%- are gone. The ones that are left are the few large ones that I started with 3rd week of October.
Currently I am out of bed more today--hence this letter. I still cannot shake this fever.....
3. Incidentally I am getting over Tardive Dyskinesia from Stopping Abilify. My shrink put me back on Abilify and after 2 doses I am considerably better
4. all lab tests were WNL EBV showed convalescent Mono (1979 and 1995) but no acute illness.
5 CBC was completely normal--No rise in WBC and the differential completely normal. even extensive Vitamin labwork was done and all WNL. CMV was WNL. I have not been around anyone with the flu or TB. Both my PCP and the ENT are at a loss for the low-grade fever and fatigue...I have cut off social activities since no one can figure out the fever since Oct 30. Most of the time I feel OK in the AM, but by four I am exhausted and the temp is back up. I have eaten more ice cream in the last month than I have in the last year, and I've only gained 5 pounds...which is amazing. Usually I can just look at ice cream and I gain weight. After a day of severe mouth pain where I only ate ice cream all day, I lost 2 pounds the next day!
That is XXXXXXX can think of at the moment; I hope you can figure this out because I am sick of being sick!! XXXXXXX V. Herbison
Answered by Dr. Erion Spaho 5 hours later
Brief Answer:
Other infections to consider.

Detailed Answer:
Hello and thanks for using HCM.

I have read your question and understand your concerns.

In my opinion, an infection should be evaluated as the most likely cause of your issues.

Lower respiratory tract infections or TBC are among the most common causes that may cause symptoms like yours.

Imaging studies such CT scan of the lungs
etc. are necessary to evaluate more correctly this possibility.

Other conditions to consider also include brucellosis, etc.

Brucellosis as a possible condition is evaluated by the appropriate blood tests that may confirm or exclude it.

Discuss with your Doctor about these issues and further tests.

Hope you found the answer helpful.

Let me know if I can assist you further.

Take care.

Above answer was peer-reviewed by : Dr. Raju A.T

The User accepted the expert's answer

Share on
Question is related to
Diseases and Conditions ,  

Recent questions on  Gabapentin

doctor1 MD

my husband has a L5-S1 disc herniation, and subaequently sciatic pain. Since starting Neurontin 100mg TID 6 weeks ago, he has had periods of inability to reach orgasm. Does one have to do with the other? He is 6'0" 185# 39years old and in good health. He will be within seconds of orgasm and he will lose his erection. The erection will come back and he will continue the pattern and sometimes (even after trying for 90min) still have no success. Help...

doctor1 MD

Hi.. My son a 25 year old Brazilian Ju Jitsui grappler who competes internationally & teaches on a full time basis in Toronto. He had been competing heavily in New York & Chicago in August 2013 & must have injured his lower spine at that time, requiring surgery known as a discotomy of the L 4/5. I believe the surgeon was very good but for whatever reason ... & quite possibly Thomas prematurely doing too much activity, has been in great pain for most of the last 9 months. He has taken a great deal of pain medication (Toradol, Tylenoly ES, Gabapentin an anti-inflamatory drug) which we are concerned about & also has had ablation of the nerves two times plus multiple cortisone injections. The pain remains unbearable when medication is decreased. Surgery for a fussion of affected vertabrae has been suggested but my son does not want to accept that option. Any suggestions for treatment for pain relef to allow my son to get back to his career & life.

doctor1 MD

I have bilateral neuropathy. I have several other conditions, one of which I take gabapentin for. My neurologist recently prescribed tramadol to compliment the gabapentin for dealing with the nerve pain. Despite the fact that I found the tramadol to be effective in reducing the progressive nerve pain, I had to stop due to an adverse reaction. Today my neurologist called in a Rx for fioricet to try instead. I do not suffer from migraines. I cannot find any info online about taking fioricet for neuropathy. Any thoughts on why/how thiscdrug would be effective for dealing with nerve pain in my legs?? Thank you in advance for your time and expertise,Chronic nerve pain sufferer

doctor1 MD

My husband has diagnostic neuropathy in his feet and it burns like a thousand bees are stinging him on the foot. He has taken gabapentin 3600 mgs and lyrica with the Gabapentin. And it did not work and now he is on cymbalta and oxytocin is not working either Is there a surgery where they can stop the nerves from burning by deadening the nerves and he doesn t care if he has no feeling after the surgery . This is a last resort for him. Thank you so very much. God Bless to you Andrea

doctor1 MD

i have crirrocis quit drihking 2years but i have bad itching

doctor1 MD

My entire right arm keeps falling asleep whenever I sleep, regardless of my position. This has been happening for over a week. I have a history of both stroke and neuropathy. I am a 54 yr old woman.

doctor1 MD

Hi my name is XXXXXXX I take trazodone, gabapentin and duloxetine HCL DR, with oxycodon-acetaminophen7.5-325 witch I have to drug test for. I was just told my test came back showing I have taken lorazepam . this is not the first time for this...