Sleep apnea?!

Sleep apnea runs in my family almost everyone has it. I know it's when you stop breathing in your sleep or have a hard time breathing. But could it also be where you fall asleep anywhere any time and no matter how much you sleep at night? I can sleep from 9 at night until 1 in the afternoon and I'll be up maybe until 3ish and I'll be back to bed on and off for the rest of the time until I go to bed for good. It's actually starting to worry me because I was never like this before it's just recently happened maybe in the past 2 to 3 years. What could it possibly be? Should I go to the doctor for a sleep test?! Idk if this is normal or not.