When the blood lady realized she forgot to fill one of her vials after she’d pulled the big scary needle out of one arm

so she had to poke a new needle in the other arm and thankfully the stretchy wrapping tape color she picked now doubly matches my questionable shirt.

Tentative diagnosis: occipital neuralgia. Which in all my discussions with my doctor and in my subsequent googling seems very plausible given the locations of my headache pain. Final diagnosis still pending ...