Look closely.
See those tiny dots on my fingers?
They are both on roughly the same spot, one on each finger.
Tiny Blood Blisters!
They have been there for a week.
Now, blood blisters usually require a little bit of pain, don't they?
I should have noticed if I were to do something to cause these, wouldn't I?
WHAT could I have done to make these appear?
Nothing.
That's what.
Think about it.
I have been taken over by Pod People while I was sleeping.
These are the spots they poked their probes in.
Only plausible explanation.