I'm one of the ones with interstitial cystitis. I kept thinking I had bladder infections and kept getting put on antibiotics and nothing seemed to work and saw a urologist who did a cystoscopy (oh, isn't peeing comfortable after one of those - NOT - I felt like I was peeing sharp knives for a couple days). I've been where you are. My urologist wanted to put me on meds but with my liver disease I can't take most of them because they are absorbed by the liver and could do me a lot more damage than good. My urologist gave me a prescription for Urased to help with the burning/pain/feeling like I have to go all the time. I also bought some over-the-counter med and keep it handy as well. My urologist also told me to buy cranberry tablets and to take two of them each morning with lots of water. Thankfully, doing what he suggested has helped me quite a bit. I hope you can find some relief. I know exactly how you are feeling right now.
Lupus 2008; Primary Biliary Cirrhosis 2007;IBS 2004; Chronic Hives 2002.
Medications: Allegra, Zantac, Ultram PRN, Xanax, Darvocet, Ursodiol.