After I cleaned my ears last night my right ear feels stuffed and doesn't hear well. I have not been on a plane or at a concert and I've never had any ear problems. Almost everyone else except my mom has a cold but I haven't caught it. My mom thinks I might be sort of catching it but I really don't think so. She had me drink lots of water but this hasn't helped. It's not painful but it's very annoying. If I plug my ear for like 2 minutes it goes away, but sometimes only for a couple of seconds. Also sometimes I will hear a pop and the pressure goes away, but that doesn't last long either. Popping my ears manually also doesn't help. It just feels kind of pressurized. It's very annoying, I can't hear my music good enough and I have an exam next tuesday, please help!

Sounds like you might have fluid behind your eardrum. A trip to the doctor so that he/she can look at this is in order.