Sleep study test?

Has anyone been tested for sleep apnea? I'm almost 19 and went in for my tonsils being swollen and took an epworth sleep scale thing, I scored high and now he wants me to do a sleep study to see if I have sleep apnea and if there's a reason to take out my tonsils. My parents said there's no reason to but my mom has it, I'm kinda scared anyone ever had this done? Leave comments below please!!