The views expressed by me are for educational purposes only and do not establish a doctor patient relationship.
I am Mysticdoc, experienced Internal Medicine Specialist.
I am here to help you with your concerns.
which part of the stomach you have the pain?
Incontinence and burning pain still suggest the bladder infection commonly.
the lower part
Although urine test was negative initially, this should be checked again.
and an antibiotic course like Bactrim should be tried.
Besides infection, kidney stone can cause similar symptoms.
An ultrasound of the kidneys will be helpful.
Isn't there anything over the counter I can try
yes you can
Pyridium ( Azo) tablets will be helpful with the burning sensation.
The dose is 100 mg twice daily up to 3 days.
Also there is a over the counter product called Cystex
This has both pyridium and methenamine.
This can be used to treat UTI.
However, it is better to discuss with your doctor and get a proper antibiotic.
If cystex does not help, then prescription antibiotic should be considered and an ultrasound.