I have like bumps on the side of my tongue what is that?

Food reaction?: Bumps on the tongue could be caused by acidic foods. If so, they should go away on their own within a few days. If they last longer, see a dentist.

Possible bruxism: Often clenching and/or grinding puts the tongue (or lateral borders) in the way of the teeth or the tongue just flows into the areas between the teeth. This can cause the appearance of what appears to be bumps on your toungue. See your dentist to make sure.