Hi,

About a week ago (June 22nd), I noticed small bumps on my arms. It seems to be heat activated (e.g. weather or exercising). Recently these small bumps have surfaced on my leg as well. My skin is peeling a little bit. Could this be psorsis or something else?

Thanks:)

Sounds like a heat rash to me

You can also get small, white bumps from sun exposure. I get them with mild sunburns, and sometimes even without having an actual sunburn. That could also explain the pealing.