I Have Severe Pain In My Wrist, Thumb And Now
It could be carpal tunnel syndrome
it seems like your carpal tunnel has aggravated.
it could be secondary to osteoarthritis.
I suggest see a rheumatologist or a hand surgeon.
they may advise you to carry out a nerve conduction test .
that will confirm it.
treatment may be a steroid injection,in case that is short-lived or doesn't help,then you might need to undergo a carpal tunnel release.
in the meantime medication for nerves like pregabalin or gabapentin might help.
hope that helps.