I keep getting this same rash of small red dots under my skin. They are not bumps and do not change the skin texture. They are just red dots under the skin that make the skin itchy. They come and then go within 15 minutes. They happen on the top of my left hand or on the inside of my left arm.
It happens sometimes for no reason whatsoever, other times when I put a watch on my hand, or when my hand has been under a desk light for studying.
Here are pictures: https://www.instagram.com/greengrassbluesky2017/
This has been happening for about 6 months now.
I got sick 6 months ago with a severe sinus infection. Then about 3 weeks later I started to get these rashes. The rashes have continued since then. I never had such rashes before that.
I took a thyroid test recently and it was normal, however my tests a 1-2 years before showed very low hypothyroidism, but not severe at all. No medication necessary.
What is this reoccurring rash? Is it normal? Or the result of a hidden illness?
I did it with a girl I didn't know well 6 months ago when this first started. I tested neg for hiv at 6 weeks with combo and 3 months with oraquick. The doctor at 6 weeks told me to rule out hiv-1. However, I am afraid of hiv-2.
Please help.