Hey, I just made an account for this one reason because I can't find any cures really. No one seems to know what this is so I came here to see.. My chest, back, neck, head and upper arms sting whenever I get hot, that it be from working out to just getting embarrassed or anxious. I was carrying groceries in the other day and it hurt then. It lasts for a few minutes or until i cool down or get cold water on my body. Its been going on for about 2 months so far and it affects me greatly as I am in multiple sports and weight club. I am a 16 year old male if that helps any. If anyone has any suggestions or feedback it would be greatly appreciated! Thank you and have a good day.