Could I be getting stress hives? I've been feeling really worried lately because I keep having…

Could I be getting stress hives? I've been feeling really worried lately because I keep having pressure in my chest, and now I seem to have marks and hives everywhere on my body! And there's none on my boyfriend or my dogs, and hair feels like its poking me and giving me a rash, even human hairs like mine or my boyfriends. Help!