Hello,
Your description covers a wide range of diagnosis. Dental, gastric, sinus and organ disorders can contribute to your symptoms.
Gastric disorders can cause an
acid reflux which could explain an uncomfortable feeling when on your back. There can be too much acid in your stomach . Change in taste, fermenting and
bad breath can be related. Reducing acid, caffeine and fatty foods help reduce this. There are over the counter medications to help. Try an antacid/
calcium supplement first and then a
proton pump inhibitor such as Prilosec.
Sinus infections can drain to the back of your throat. This is acidic and the inflammation may be more apparent when lying down. Again taste can be affected. Breathing by mouth can also be a factor.
Post nasal drip may indicate allergies. Do you suffer from any seasonal allergies? Saline spays may offer some relief. You can try a decongestant to see if this helps reduce your symptoms.
Your dental health may contribute if there is an infection present. An abscess can drain causing an acid taste. Periodontal disease can be hidden under the gums even though you report brushing multiple times a day. Infections such as thrush can affect taste. Make sure you are flossing and rinsing with your daily routine. Make sure you are up to date on your routine exam and review all complaints with your
dentist. A clinical exam is recommended. Prescription medications or treatment may be indicated.
Recent changes to your diet and smoking can affect taste. It may take time for your system to obtain a balance. Some spices and even vegetables can have strong odors associated with them. Make sure your diet is balanced and no deficiencies have been created with your changes.
Diabetes can affect taste and a very distinct odor can be emitted. Ketone breath may fit your description. Do you feel dehydrated? Difficulty in healing can be a complication. Metabolic disorders can be considered. You should have an up to date physical exam. Simple blood tests can check many organ functions and help your diagnosis with appropriate follow up.
I sense you are trying to follow a healthy life style and makin changes to address your concerns. Continue to follow with good choices. I hope some of my suggestions offer relief. Thank you for your inquiry.