Does anyone ever feel their hands are fatigued when they play? Not really after a tough session playing but even just after warming up a bit. Its like your hands are stiff even tho it isnt cold and you have warmed up enough.
Yup I get that too. It's damn annoying too, just wanting to jam along and your hand won't let you! I guess it's just cramp
“Don't get so busy making a living that you forget to make a life.”

― Dolly Parton
Yeah that happens occasionally to me too. Maybe your hand remembers the intense practice from the day before and fears going back.
Happens to me alot recently. I think it might be something to do with making my forearm sore from the amount of downpicking I practice.