I just began Hydrochlorothiazide for High Blood Pressure, on Thursday September 13, 2007. I took the pill in the morning, I didn't urinate as much as I expected too. On Friday morning I woke up with an unexplained pain in my right index finger, I was not to worried about it as I often hit myself and not remember. The pain didn't go away but it began to get better. Saturday it was much better, I was able to touch it and move it more frequently. Sunday I woke up to this same pain even worst than Friday. My index finger is swollen, red and I am in a lot of pain. Can I have a side effect from the pill? I also took a Vitamin C pill 500 mg during these days. I called my doctor and she suggested that I go to the emergency room, I was diagnosed with having a strained muscle. I read information about side effects from the pill Hydrochlorothiazide, and the word gout was mentioned in the big toe. Then when I look up gout in the finger it talks about High Blood Pressure. So I believe I may have been misdiagnosed. I was given Voltaren (Diclofenac Sodium) the first pill I took the pain began to go away almost immediately. I don't have the pain but my finger is still a little swollen. I am wondering if it couldd be gout why wasn't this mentioned by the doctors, I told them I was taking the Hydrochlorothiazide pills. I would like too know do anyone have any information about gout that will help me.