Elmiron and organ failure

I'm 25 and diagnosed with IC when I was 23. I'm taking elmiron 100mg/3 times daily. I have to down ibuprofen quite often for side effects from IC. It doesn't seem to go away. I'm taking amitriptyline(using for muscle relaxer) 25mg/twice daily for spasms. That seems to help quite a bit but just for spasms. My doc told me I was having issues because the acid(from food or drinks) in the bladder was bringing the IC back. So, I started taking Prelief which is suppose to remove the acid from whatever eating or drinking. But, unfortunately it seems to work with everyone else but me. So, I'm completely lost and my doctors don't seem to think I have enough issues to worry about. I've tried going to other doctors and they either don't deal w/ IC at all or they still aren't accepting new patients. Or my doctor wants me to keep coming in twice a month to give more money when absolutely nothing has changed. What to do?