I have developed a small painful red bump on the side of my tongue near the back i don't drink or smoke any ideas what this could be?

Tongue: May be local tongue trauma from the teeth, an inflamed taste bud or tongue papilla an inflamed salivary gland. Gargle with salt water and avoid spicy or acidic food but check it out with an ENT or oral surgeon

See your dentist: There are multiple factors that can cause a painful red bump on the side of your tongue (e.g. chronic trauma). It is important for your dentist to determine the cause of the sore tongue. The majority of tongue problems are not serious and can be resolved quickly. Good luck.