What can you tell me about this nerve connection?

At the crevice on the right side of my right nostril, at the bottom of the crevice, directly above my i-tooth, so much so that if I push down on that spot, I feel the root of the i-tooth, the skin, has a sensitive nerve! If I press this nerve spot with my fingernail, like an itch, it sends a very strange sensation (sort of like a sore feeling, or itchy feeling) to the area around my tonsil area on my left side! What is going on there! It’s been that way forever! lol