Water exercises symptoms and conditions

I started taking Mobic 7.5 mg about a year ago like everyone else I'm having some of the same side effects. Skin rash on arms, knee pain that wasn't there, tired and groggy, insomia, and forgetful at times. I have had severe back pain for over two years. Diagnosis, osteoarthritis, osteporosis, degenrative disk disease. They can't even tell me for sure what is causing my pain. Insurance companies like to keep us sick and in pain. Want to do water exercises but there are not many facilities out there.