achilles exercises 15:00 
Headache doctor today!!! Did these waiting for the shuttle on the way back. (almost-calf raises on the edge of a short wall, rdl, balance clocks, stretchy band side walks, almost-jump running balance things. also calf stretch against the wall.) Side note: there was almost nobody on the shuttle, and it's ucsd people only now and you have to show your symptom screener to get on, so I felt super safe! I think it was the first time I've been on a bus since last March :o
I haven't really had disruptive headaches in the month before this appointment, but some she had some productive info anyway: headaches can keep happening after a trigger is gone, so it wouldn't have had to be caused by something that was going on for the whole worst 3 weeks of the headaches; she agreed she's never heard of iron supplements causing headaches, so despite the close timing between the iron starting and the headaches starting, that's unlikely to have been the cause; she agreed w the other doctor that my skating fall was unlikely to be the cause since I didn't hit my head; she pointed out that the headaches were super reduced within a day of me starting prednisone and said sometimes there's systemic inflammation stuff that could cause both headaches and a rash (she asked if I'd been sick, but I haven't been sick since summer); she said there's a thing called exercise-induced headaches, but those usually start really close in time to the exercise, so she doesn't think I had those (good news for future exercise--yay!!!!); I asked whether masking in my common areas when my new roomie arrived + at PT could've indirectly played a role, like if I was breathing differently, and she said breathing differences can cause headaches and something about vasodilation; she agreed the headache medicine I didn't like sucks (apparently in addition to making you feel messed up, which is my problem with it, it can also cause rebound headaches); I forgot to ask if allergies could've played a role, but also she didn't ask much about allergies, and probably it's unlikely that I suddenly developed allergies severe enough to cause super painful headaches; I asked if I'm just a person who gets headaches now, and she said not necessarily (yay!), and also that headaches are mysterious. The end. Hopefully they stay away, but if not then now I have more info and know what to pay attention to!