I have been on Diovan HCTZ for years. It has really controlled by BP but there may be a problem. Not long after I started taking this combo I started getting muscle pain. I have been told everything from "it's your weight", "it's gout", "it's rhumatism (spell?)","it's being over 40 (I'm 43)" and the latest "you have fibromyalgia" . The thing is my 23 year old son has started having the same symptoms.Guess what he's on, HCTZ. It's rare for males to get fibro especially at his age. Could the HCTZ be the real problem and why didn't either of our doctors make the connection? I'm tired of the constant pain and have begun to wonder it the risk of heart attack and stroke isn't preferable to this day in and day out nightmare.