I started to form these bumps they look a bit like hives but I'm not sure they are. This started around December I was gone out to eat lunch it was cold so I had on my jacket and I walked for about 10 min outside, when I came back to school I felt really hot inside so I put my hands on them to cool my arms down, but after 10 min I noticed bumps on my arms they were itchy and surrounded the inside of both my arms and my friend thought it was an allergic reaction. I went home and applied some cream to it and I wore a thin hoodie to cover my arms and in an hour my bumps went down. This happened again a week later i scratched my throat a little because it felt itchy and then after a while my arms felt a bit itchy as well then I took some cream from my classroom and covered my arms with it I also put on my jacket to hide the bumps and they were gone in an hour.
This didn't happen again for a very long time until i joined badminton, which was in January, I was playing a lot and noticed that i wasn't sweating at all and I found this strange because I would always sweat before while I play so i checked my arms again and bumps started to form I showed my gym teacher and she was wondering if it was a heat rash and im not so sure it was tho.
I quit badminton because i wanted to find out what was wrong with my skin before I started to play again. A week later my forearms had begun to feel itchy almost everyday and if I scratched them even a tiny bit bumps would start to form or a red spot would show up. My breast itches a bit too now but only at night time this happens, both the itching of my arms and breast. I really needed to know whats wrong with my skin before I die of some unknown disease please help me .