I've been suffering from migraines after my Personal Training sessions at the gym. Not every time (and interestingly not after any other session that I do) but out of 10 PT sessions, I've had five migraines.
I've done some reading on the internet about possible causes ("Exertion migraine" apparently) and there a few things I can try to prevent them but I was wondering if anybody else had suffered from these and what, if anything, you found helped you?