It’s burns

Idk if anyone will catch on to what this might be but it’s quite annoying.. I have this spot at the top of my belly and NOTHING is there it’s literally normal looking but it always burns right there.. just in that one spot on the outside.. this has been happening since second trimester and I’m now 33 weeks. Today it’s quite bothersome, it doesn’t bother me everyday but every once in a while and idk what to do.. I literally have no shirt on right now nothing is touching it an it still burns.. please tell me anyone else had this before? I’m not crazy I promise lol