Hello and hope you are doing well.
Your on going symptoms of numbness could be due to neuropathy. NCS, nerve conduction studies may show the effects on the nerve. Check to rule out thyroid disorders and take OTC multivitamins.
Hope this helped and do keep us posted.
I have very similar symptoms myself. I am awaiting an appointment with a neurologist but in the meantime, I am unable to sleep most nights for more than an hour or two at best. I'm scared to death about what is happening to me. I have had 5 blood tests done and all came back 'normal'.
I have had a weakness (no pain) in my left arm for about 18 months and now weakness from the elbows to hands (inc hands) both arms. Odd sensation in knees (not both at same time) twitching toe on one foot.....list goes on.