Crab claw is an excellent description. Me too.

Yes, especially I. The morning and I also have weakness where it’s hard for me to open things

Yes Trevor usually worse in the morning when I wake up.

Yes i have terrible pain in my right hand. I had to have my index finger amputated 9 years ago after having ligament snap and my finger never recovered. So I cannot make a fist. I am now suffering with tremendous pain and heat in my middle finger and I am now waiting for an operation on this finger to get rid of Neuromas that have been growing onto my bone. So I definitely know I won’t be doing a fist for a very long time or never.

Yes one of my hands I can't even turn a key in the lock sometimes.