Raging Bull:
You compete, right? How much GH do you take in a typical cycle?
I assume a lot. Maybe 10+ I.U.'s/day.
There can be a lot of GH side effects other than the wrist discomfort. Let's try to isolate the problem. Do you feature an acromegaly-type face? Big jaw, frontal lobe, etc? (Or, according to one message, the "Shannon Sharpe-look.")
If no, then I suspect that GH may make worse an existing "carpal tunnel" syndrome. You lift and already place a lot of stress on the connective tissue in the lower arm. (Think of what a 100 pd. dumbell and pump can do.) GH causes ligaments/tendons to grow. So a cycle and connective tissue growth may leave less free space availabe in the wrist. In effect, the chance of pinching a nerve increases.
Any other aggravating factors? Maybe at a daytime job? (Or are you a pro BB?) Repetitive stress -- like the keyboard, assembly line, meat-packing, etc.
Short term, you may consider a night-brace(s) to hold/keep your wrist(s) in a non-stressful position. Heat should help circulation, too. (Blood supply to connective tissue is not always good.)
Or stop using GH. It's the "quit while you're ahead" approach. Not really, though. I understand how the stuff can competitively help you.
Long term, the GH episodes/pain may foreshadow a more serious, underlying issue. Surgery is a solution. (I don't want to scare you.) In that case, the problem is so unbearable that ligaments/tendons are severed to relieve pressure on local nerves -- the source of pain. The recovery could really fuck-up a BB season.
Good luck.