slightly uncanny, haha
in re: not "wiping myself out," pretty big fail on that front. a few hours later, i got what i am pretty sure is an exertion headache, basically a shorter-lived but just as severe version of the debilitating headaches i've gotten after each of the half marathon races i've run, and the ten-miler. first time that's happened to me after an ordinary run, which is a little worrisome. the last time i did surges during a long run, a month ago, the intervals were longer and faster, and absolutely no problem. it's not hydration or diet related, i don't think, since i brought and drank 400mL water and 400mL electrolyte beverage and had plenty of gel, and drank more water with a little salt and also some chocolate milk after i got home. urine's been clear.
from intertube research, that leaves two possibilities:
1. tension - possible, given my extensive history of tension headaches and the location of the pain on my left temple, but i'm dubious because it did not respond positively to pressure on the site of pain or in my neck and traps, which usually helps during a tension headache.
2. blood pressure spike - also possible, given my generally elevated blood pressure, which i manage through medication. but again, why yesterday? maybe because it was warmer and i'm not heat-adapted yet? hope it's that simple.
i wrote to my doctor last night, after it ebbed enough for me to look at the screen, and will also ask my PT about it today.