So lately I've been experiencing almost no flush after niacin sometimes but it still works for me. No pain in body and mind stays overall clear though I still can get headache, burning in head and brain fog if I:
1) Wash my hair with shampoo or face with anything but water (one time lately I did it a week after O and was surprisingly ok so guess it should work when I out of pois- will be checkin)
2) Eat white bread/pasta - not quite headache but noticeable changes in head tension. Uncomfortable enough and worsen my hearing of music. ( aslo gives me fatigue/thirst in the first days after o)
3) Eat anything off the shop with preservatives,flavors etc. E.g. last time I ate ketchup with pasta and hour later felt same as above tension in head, burning in head, light brain fog. Btw I took antihistamin not passing BBB and still felt a bit better.
4) Listen music with too much lows. Bass and especially too strongly kicking drums (under 80hz) gives me headache, burning in head, brain fog. So guess no punching in the head for me.
My current pre-pack is niacin, 5htp and sometimes cup of green tea.
P.s. Also I drink rose-hip ( dunno if it's right name in english) and it helps me alot when headache tryin to hit in. It can be used as diuretic which is good for head tension and also contain vitamins B, C, E, you name it. Seen as anti-inflammatory, choleretic, tone-up and more and more.
Dunno about that all but with headaches it deals perfectly in my case. I stopped takin in coffeine ( though still can drink green tea now and then) and jumped on rose-hip decoction and for now I feel better- no anxiety, clear music hearing, no head tension.