Hey, y'all--I saw this thread show up on the home page, and I feel compelled to respond....Doing exercises for your hands & wrists is a good thing--but PLEASE get it checked out by a doctor if you feel pain in your joints! It's not something to ignore--especially if you plan to use them for many years to come. I know going to the doctor for a "crochet injury" may sound silly, but imagine what could result if you don't. Problems in the joints often don't just go away, and in fact can get much worse with time. (Imagine toughing through it now, but then not being able to crochet at all later...AAAARGH!)
I'm particularly sesitive to this, since I was diagnosed with osteoarthritis (yep, the old lady kind) in my twenties. It's in a very early stage, and it doesn't usually bother me--and I'd like to keep it that way. PLEASE (I'm saying it again), PLEASE see a doctor to rule out potentially serious problems--it'll be good for your peace of mind AND for your future crochet projects! And besides, your doctor may have simple solutions and/or adaptations that simply will make your hands & wrists feel better.