Ridges/groves/dent appearing in my skin and disappearing

Hello, I have these dents of groves that appear in my skin and disaper after an hour or so. There is no pain with them. has anyone had anything like this happen? i cant seem to get any answers. its like think stretch mark lines with groves and then they disapear

Sounds like an allergic reaction, when you rub against something that may have dust mites or some alergin on it.