As far as I am aware the pain does not extend up the arm, but only affects the hand, leaving the pinky and half the ring finger unaffected. I have had one hand surgically released and the other hand goes numb every night.
I also have my ulnar nerve that causes numbness at night also. It does affect the forearm and inner side of ring finger/ pinky.
Maybe you have a problem with both nerves?
There are disorders that make a person very susceptible to pressure palsies. Weight loss can make pressure palsies worse in some cases and better in others.