annoying skin problem?

[mrE350]

Hi everyone, my question relates to my skin, as you can see by the title. My question is that when ever i get even a little bit hot, my skin starts itching like crazy, my chest, my forehead, my back. this happens on a daily basis. Like today i was taking a shower in warm water and my skin started itching, so i had to go to colder water and my skin stopped itching. But this also happens when i get nervous or excited, and lets say i come indoors from being outside then it also happens. this happened to me about 2 years but then it went away and now its back. so yea do you guys know what this is?

[Dr.Saiyan]

Hi Bob! welcome to forum. I wanna ask you few questions, how old are you?is your skin just itchy or do you also have some rash (hives) associated with it ? Do you also get this after exercises, sweating and physical activities? Do you have any systemic diseases like diabetes, peptic ulcers, liver diseases or thyroid disorders and associated symptoms?