Re: Going to Aikido with a Headache
I'm generally surprised how much better I feel once I get on the mat, though doubtless it depends on why you have a headache in the first place. Anyway, I find it saves psychological effort if I don't decide each day to go or not, but just go unless I'm really sick.
Severe headaches (visual illusions, blacking out, throwing up, screaming amounts of pain) count as "really sick" though. Luckily I seem to have outgrown these.