Welcome to HCM
We understand your concerns
I went through your problem description. I suggest you not to worry too much. Numbness
sensations in the tongue could be due to paresthesia
of the tongue, which occurs due to damage to the nervous system. The sensation could just be due to apprehension.
The shooting pain at the back of your head can have several reasons. But connecting these two is tricky. Therefore I suggest you to consult a physician for proper diagnosis.
Hope this clears your doubt. Available for further clarifications.