Am sure i don't have sleep apnea. am not overweight. father.mother.brother also snore. . i have large tonsils could it be the reason. treatments?

Maybe: It is possible, but impossible to tell without a sleep study first. See a sleep physician.

Need to be tested: Without a study, you can't know. Tonsils can obstruct airflow, and if blocked long enough, that is the definition of obstructive sleep apnea. Tonsil removal may be all you need, but you need an exam. Tonsils may only be part of the problem. Often it is not enough. Apnea is common in skinny people.