Hi there.
The symptoms that you are describing may be due to some nerve problem, probably with an element of
compression. It is very hard to ascertain the specific nerve involvement without a formal neurologic
examination.
A local nerve problem due to a possible previous trauma or prolonged pressure (like when you sleep while you
are sitting and place your head on the fore arm) can also cause some nerve damage which should eventually heal
or improve.
I suggest that you take this to your doctor so that you can be examined properly. He may request imaging
studies such as MRI if he deemed it necessary. For now, avoid any injury or pressure to the area.
Regards and God bless.