@Kepler's Motion
I gave up using cow milk.
It had a bad effect on me.
Chills, confusion, crying.
For good measure, I don't eat beef, either.
Nightshade family (tomatoes, potatoes, eggplant, peppers, tobacco)
make me miserable. Aching joints, a feeling of heaviness physically,
and extreme depression mentally, as well as runny eyes and sinus
pain.
Caffeine gives me hives.
Latex family makes it hard to breath & a feeling of
burning in my mouth(bananas, figs etc) and the touch
of latex or lyric makes me itch intolerably.
I used to feel very cloudy in the head before I figured out
these substances were a problem. It's useful to keep a
food (or exposure) "diary" in order to track occurrences
of feeling bad/weird/disoriented/'off.'
You are sensitive to quite a few things. Have you tried cutting out bread and pasta? I've heard it can have a surprising impact on some people.
I myself tried cutting out bread and pasta for a month, substituting it mostly with rice. Wow, I dropped 6 kilos (13 lbs) without even trying.

I'm still trying to figure out why my scalp is so itchy (currently controlled with medicated shampoo) and I have rosacea.