It sounds like you are have some unwanted fluid pressing on the nerves in your wrists. Carpal tunnel type pain is common with GH. Over time, this fluid will level out. For now, you might want to reduce your dose, maybe 1.5 in the morning and 1.5 later in the day. See how that helps. If that is enough to reduce the pain, try to slowly add a small amount back in and over time, get back to your 4iu. I know you want to run your 4iu, but gh is a long term project. You'll still get plenty of effect off of a lower dose and over time, you'll get to where you want to be.