My major issue is with clothing. Seams, tags, etc. bug me to no end. I have to cut all tags out and fray any leftover tag material so it's soft. Seam stitching rubbing on my shoulders drives me mad. I like Raglan sleeves for this purpose. I also can't stand when fabric gets bunched up around me in any way, sleeves that feel tight agaisnt my skin, and bra hooks and straps. I wish I could go without, but I'd be sagging to my waist in no time if I did that.
I'm seriously allergic to metals too, and can only wear titanium and 18K or more yellow gold(white gold often has nickel in it) and probably platinum, but I'm not that rich. I have keratosis pilaris on my upper arms that makes me itch like crazy too. If I have any little, teeny scab or anything like that, it will drive me nuts because it itches like crazy. I also just found out I'm allergic to lavender. I trimmed my lavender plants a few weeks ago and got red, burning, itchy hands from doing it.