Left hand from pinky&side of palm up to center forearm twitches, numbs, itches and lose ability to grasp things for awhile. twitching comes&go.tingly?

Ulnar neuropathy: Injury of the ulnar nerve can cause grip weakness and tingling/ itching/ sensory changes of pinkie finger ; palmar side of hand, and possibly referred pain/ sensory loss up to forearm. Deficits ; pain of nerve injury characteristically comes and goes. Have your neurologist check you out and make recommendations. Good luck!

Ulnar neuropathy: You are describing ulnar neuropathy . This can arise from cervical spine problems or from problems with the nerve. You need to see a neurologist.