I have had many bladder problems in my life but they had been getting better since I started drinking 8 glasses of water per day. But my husband and I recently rented a place with a hot tub and after some romantic evenings and hot tubbing I got a terrible flare up with painful, frequent urination and it felt just like a bladder infection. After about 3 hours, it was gone. But then two days later I got the same terrible symptoms. They lasted longer and even though the urgency finally went away in a few hours, the pain has lasted several days. Does anyone understand this? Is the hot tub the problem? Thanks for your help!