I have painless bumps on the back of my tongue and bald spots that burns with red bumps in it on my head. Pl us a small painful bump on my gum.

See your Dentist. Some of what you are describing may be normal anatomy, some may be lesions. Not being able to see and examine you, palmate the lesions, review your medical history and meds, etc. we cannot in this forum make a diagnosis. Please see your Dentist or an Oral & Maxillofacial Pathologist to begin the differential diagnostic process.