Hi.
Thanks for your query and an elucidate history.
Read your history about tampon and MS and the problems now you are suffering from.
If the tampon is sterile, it may not cause a big problem. This might have caused a minor infection.
The smell in fact can be due to infection, and you already have been under tablet
Cipro. This should take care of both the infections.
I would advise further :
Get an infection by a Gynecologist done for an internal examination, send the swab from vagina for gram staining and culture and sensitivity.
Add on
metronidazole and probiotis as they help to heal the vaginits and
urinary tract too.
The cause of distension and pain in the left lower abdomen can be due to :
PID.
Salpingitis or
TO mass.
The following investigations will help:
Routine blood and urine tests with culture and sensitivity.
Swab from vagina
Standing X-ray abdomen
Ultrasonography
I hope you would be fine soon, the moment a you et a proper diagnosis and treatment .