Is there something wrong with me...mentally?

I really don't remember when it started...Well,my estimation is a couple months...Anyway,I've been hearing really weird things:trains,footsteps,breathing,dripping.
I've been sooo paranoid,too. Well,ever since I was little I've hated being alone. I feel...

like someone is hiding under the bed watching my every step. Or someone was peeking through my window,or someone would knock my door down and take me away.
I feel like everyone is out to f***ing get me! My teachers are new this year,and I think they may betray,lie or cheat.
I have a split class with people who are 1 year older than me. I feel like no one will like me at all;maybe even bully me.
I can't eat an odd amount of something. Take pizza for example.
Everything has to be even.
Everything has to be clean,organized;nothing out of place.
I have this stupid repetitive thought in my mind.
I even wrote down my thoughts last night...Creepiness...
If I touch something,I have to touch it all over (I'm serious,don't be so perverted).
I could go on and on...Is there something wrong with me...mentally?
**I've tried telling my mom that I've been hearing things,but she thinks I'm just joking...

it sounds like ocd (obsessive compusive disorder) from the bottom and I dont no what it is about th noises
I have ocd also

Consider talking to a counselor...

Go doctors,sounds like you have OCD,or some disorder of a mental disorder,does anyone you know believe you like have you tried asking them?
Pm me

you could be schizophrenia and have also OCD (Obessive Compulsive Disorder)... but I'm not sure nor I'm not a doctor so you have to go and see a doctor and they will know what to do then. good luck and take care!!!=]

you need to tell her with absolute seriousness and let her know your not joking around and that you need to see a doctor or a councilor you need to let her know seriously that something is wrong and something needs to be fixed

it may be ocd but im pretty much the same wayand I dont think I have ocd. unless your really scared where you cant even be in a room alone I wouldnt worry about it.

I think you might have mild schitzophrenia. That's when, like you said, you hear voices or noises that aren't there, are very paranoid, and can't normally leave things the way the are. Don't be scared, but I'd go to a doctor or a counselor and talk to them about your symptoms!
Hope this helps!