i have this problem where if i sit, lie down, lean against something, or someone walks up and slap me on the back i began to fill like i am itching in the area that i came in contact with. i don't break out with any bumps, or hives, my skin does not turn red everything looks normal it just fills like i my skin is itching or burning. could please tell me what my problem or has anyone else had this problem and what did they do to cure themself.