I can totally relate to u!!! I am so adamant about what is in my foods, drinks and even perfume fragrances etc
I don't drink coffee anymore, I don't have tea, nothing with alcohol in it, no wheat, no dairy foods. Even colouring my hair I am so paranoid about the bleech being on for too long as it also fuking aggrivates my brain since getting hppd.
I just pray to god that one day I won't ever have to be like this again