i have experienced this as well however it happens to me only when i am sick especially if i have a fever. i assume that is not the case with you because you say you are healthy but perhaps you're coming down with an illness such as a cold or flu? i'm not sure how long this has been affecting you so if it is not due to a "regular illness" such as a cold/flu/fever here are a few ideas to google: tactile allodynia dysesthesia and fibromyalgia. tactile allodynia in particular sounds like exactly what you are describing. i hope you find answers and get relief. good luck!
when i am lightly touched i feel skin discomfort and a sort of burning pain. my girlfriend will lightly touch me or rub me and i cannot stand it. it has nothing to do with intimacy. it happens all the time. if she touches my skin firmly it feels good but when its a lighter touch it feels like it burns and hurts. i have no skin disorders and am a healthy 27 year old male.