Does this sound like MCS?

For a few years now I've reacted to random things that interact topically with my body -- skincare products, jewelry, detergents, contact lenses, certain smells, adhesives, etc. My reactions include burning and redness at the site of application, tingling in my extremities, labored breathing, brain fog, a sense of impending doom, and some sort of hormonal fluctuation.

It seems like I develop a new intolerance whenever I layer two things together. For example, if I put moisturizer on my arm and then sunscreen over that, my body will then reject both the sunscreen and the moisturizer along with anything else on my skin at the time.

I've seen a handful of doctors over the years, but they've never been able to identify what's going on. Does it sound like MCS? Or maybe MCAS or a histamine intolerance? I've done blood/urine testing for MCAS, but it's always come back normal (which I know doesn't necessarily rule out the diagnosis).