M I woke up this morning, took a shower. When I went to shave I
noticed that M the GFCI receptacle in my bathroom had tripped. I
pushed the "RESET" button M back in but it immediately popped back
out. Tried it about 10 more
?
==== to anything else?

this happened to me recently. replaced the gfci, same problem. replaced a
downstream outlet and gfci worked normally.