Got a white bump on the tip of my tongue i dont think its ulcer.

Painless?: If it is painless then I would see your doctor or dentist for evaluation. If it is sore then give it a week before seeking consultation.

OK: Unfortunately, it is difficult to impossible to diagnose bumps, lesions, etc on the computer. If your Bump persists, then see your Dr. for an examination and diagnosis of the area. Good luck.

Inflamed taste bud?: Inflamed taste buds can happen after eating certain foods such as vinegar. Drink water and eat bland foods. If not resolving, see your doctor.