Had strep throat or similar this week. Headache just about every day. About midway through the week several fingers on my right hand have “pins and needles” feelings, and have remained that way. Normal neck soreness. Related? Or something else?

Rare. very rarely, strep throat can "over activate " the immune system and result in autoimmune diseases where the body attacks itself. best to consult your GP who can suggest the relevant tests and perform a neurological examination.