As of the past few months I've been feeling extreme fatigue and laziness, and it's only getting worse. I'm 13, (but will be 14 in a week). I don't play many sports, but still keep my weight neutral. I also have asthma and allergies to dust and pollen.

To explain how it feels, it's simply very hard to move, from the most mundane activities such as typing to heavy ones like running. It takes a large amount of willpower to move, and I only get through gym by peerpressure. Next to this I procrastinate a lot and can go through light bouts of depression, although I have no academic problems. (Other than bullies at school). When I wake up I feel just as tired as I did the night before.
To make a point, moving around for me is very hard. Is there any condition I have that can be stopped? I think the whole thing is more mental than physical.