Starting about a week ago, I developed some very odd spots (lesions perhaps?) on the left side of my tongue. There are four of them. You can see them in the picture. They are not raised, are not painless, not hard, and seem to almost disappear during the middle of the day, as strange as that may sound. They are much more pronounced during the morning and evening. During the day the "spots" are still there, but they are almost the color of my tongue so they are harder to see. I wonder if this could be indicative of tongue cancer? Would tongue cancer present this way (acutely, disappearing for hours at a time)? Any opinions on what this could be? By the way, last week I ate three entire cans of Salt and Vinegar chips during a three night span. Could there be a correlation? Thanks!