Droopy Eyelids in 25 Year Old?

I have droopy tired looking eyes. They feel heavy and my eyesight is bad. I look tired all the time and I'm only 25 years old. My brother also has very droopy eyes too so could it be genetic? I can't even put makeup on my eyes properly. Is there surgery to fix this, would it be worth the risk? I may also add that I have a rare genetic neurological condition which affects my limbs, I wonder whether my neurological condition may make my eyes weak too. Thanks