The insides of my cheek felt raw and bumpy whenever i ate something. today i feel my whole mouth and the side of my tongue are raw and cut?

Localized allergy: Is one possibility. As long as it doesn't become systemic leading to anaphylaxis it isn't a severe risk but if it does include cardiovascular or breathing difficulties it can become a life threatening systemic allergic reaction. If what you ate was particularly acidic it may just be an irritated region in your mouth. Beware of any reaction other than local irritation.

Many possibilities: There are a number of conditions that could be causing your symptoms. The only way to know for sure what it is and what can be done about it, is to see a general dentist or oral surgeon for a definitive diagnosis. Some conditions need to be treated early to avoid more serious complications.