I have bald spot on my tongue?

-This happened before, about two months ago but it just went away on its own. Now I have one again but it's even larger than the last one and in a slightly different location(very slightly). The last one I had was no bigger than a cent, this one was around the size of a quarter or so and it got smaller over night. I'm worried it might be something serious.

- I have heard about a benign condition called geographic tongue but i don't know, they characterize it with white ridges or multiple appearance of the patches or bald spots, and I only have one and I don't see white ridges but i guess it could be relative.

>In additional details, if it may help, about 6 or 7 days I ate spicy food and sometime before that i also ate a lot of sour candy. Oh and when I say bald spot what I refer to is that it looks like it doesn't have the usual whit-ish surface of the tongue, as if it's a red-ish or pink patch there. Which is painless and smooth.

Thanks for you time!