I periodically get this internal itching feeling in my chest right between my breasts. It is not surface at all but it makes me want to try and itch it. I dont know if it is related or not but i never had this feeling before that i can remember till i got it when i was bit by imported fire ants about 4 months ago and found out i was very allergic to them and caused me to vomit break out in hives and almost passed out but also had heart palpation s along with the internal itching in my chest. I was never seen by the doctor for this, I just found out about it on the internet after the scare happened a second time. I dont have any kind of insurance so dont get to go to the doctor very much.
Basically the itching is due to the heat developed in the closed area, avoid going out in sun, and also you can use ice cube on the affected area to soothe the area. Wash area with the cold water twice daily to relief the symptoms