Hey Tonka,
The pain in the back and abdomen could potentially be a kidney stone. The pain is immense and usually radiates in the "flank" or back area. It can sometimes wrap around to the front stomach/groin. Typically it effects one side.
The stones also cause a sensation of needing to pee constantly, even when you really don't have enough urine to pee. It's very uncomfortable.
(I've passed 18 in my short life)
However, the burning while having a BM is questionable??? I don't have any thoughts on that.
Good luck at the Urologist.
The strange thing is I was tested for STI's and UTI and they came back clean. The doctor gave me an antibiotic incase chlamydia hadn't been picked up but I still have all the symptoms.
I am seeing a urologist next week, hopefully he can clear things up for me. It has me confused.
The burning sensation while urinating and the abdominal & back ache make me want to lean towards a UTI or bladder-infection, but with the curve-ball you threw in regarding the burning sensation when you're having a BM... that's truly odd.
You may want to try posting the question in the "Pain Management Forum". There are a lot of very smart people in that forum that may be able to help you with your multiple symptoms, and possibly point you in the right direction. Tuck, namnam, Jaybay... smart ladies.
Post over there and see what they say.
LMNO