@Shaye's:
Just give your boy his space, gently try to pick him up and quit when he resists, rub his belly any way he will let you, and eventually, he'll calm down for you probably.
I would respectfully disagree with quitting when he resists…....you are then reinforcing the resistance. If you can anticipate and release before you get resistance, that would be best, but if he starts to resist best to wait a moment and release as soon as he is quiet, which tells him what behaviour will get him what he wants. Reward profusely when he doesn't resist. When you know they don't like something, look for a tiny bit of success and build on it gradually. When you do get acceptance, don't insist on maintaining the position for very long. 🙂
