Changes in urinating?

[laurel9965]

I'm a 14 year old female and recently had urination problems. All of september I was hospitalized due to an appendix problem and it was removed. In the middle of the hospital stay, my dose of gabapentin was upped from 200mg a day to 400, and was also put on 50mg elavil since they thought it was a nerve problem. I was also having trouble urinating in this period as well. I'd have a terrible urge to go yet it wouldnt come out but eventually it would come out. We thought nothing of it because it occured after my endoscopy so we assumed it was anesthesia. This problem persisted days after and caused me to have a catheder the day of my surgery because I couldn't go before.

It's now been around a month and a half since the surgery and the problem has not gotten away, and has gotten worse. I have no urge at all to urinate now and I am going just because I know I have to go and I was only going one time a day, maybe 2 if I was lucky. My doctor thought maybe it was the elavil as urinary retention was a side effect and have not taken it since the beginning of October. I was then taken to a urologist last week and this left the urologist in shock. I was told to sit every 4 hours and to measure how much I go and to lower my gabapentin back down to 200mg. I am now going 2 times a day and every time I go it was been 900 mL and sometimes even 1000 mL. I have an appointment for a kidney ultrasound as kidney problems are now suspected.

I'd like to know if this has happened to anyone and if this is a concern to anyone? Should I be worried?