On the right side of my tongue there is like a white, wavy line. It's not in my tongue, its actually on it (if that makes sense). Yesterday, I ate spaghetti and i noticed it didn't taste normal, so I went to look at my tongue and both sides were red and it burned a little, this morning it was white. Tuesday I gave my boyfriend oral sex for the first time, he claims to not have anything like STDs. I've also been chewing a lot of Big Red chewing gum this week, I don't know what could be the problem, I just want to know what could cause this white, raised line.