so every couple months or so i get these red bumps scattered across my body but this time they’re on my arms and my chest. they’re also making some appearance on my foot and knuckles. first they’re just welts and then they turn really red and itchy. today i noticed there are little bumps inside the middle of some of them and honestly i’m freaking out. i don’t know if they’re just mosquito bites and i’m allergic or i looked it up and it could be scabies but i don’t know what from??? someone PLEASE HELP