Well, they are similar to a bladder infection. The pain and burning on urination, the frequency, etc. But the bladder always hurts. It's a pressure-type pain. And I have to keep my bladder as empty as possible, because it hurts worse the fuller it is. They only have one medication for it that has a 50% chance of working, but you need to take it 3-6 months to see any results.
I was told to avoid any type of acidic food... chocolate, tomotoes, orange juice, citrus fruit, artificial sweetener, dairy. But that's next to impossible for me!