Probably a buildup of tartar in that particular area. I would guess you're not brushing properly?
My initial guess is that its tartar buildup and gingivitis in your gum line area. You should get a dental checkup and cleaning and that would resolve the issue.
Its possible you may have an extra tooth but I would imagine your previous checkups would have shown that.
Sorry, what I meant was that it looks as if there is a hole in the base of my gums, and It looks like I could see the tooth through it...
Not sure why it would look like a tooth? Sometimes tartar can be chunky and hard so it can seem chalky but I don't imagine it'd look like a tooth but perception can be different.
That would make sense... But one last question.
What is the white(ish) spot then? It looks to me like a tooth...
Ok, but why is it hurting just in that area?
By the way, I just got braces and molar bands on the top and just molar bands on the bottom... not sure if this has anything to do with it...