illness

There is something seriously wrong with me. Besides my many psichological issues, I mean. It seems lately I'm not myself, I've lost all the energy, all the drive, all the willingness to do things. Last semester I juggled with school and a job, and while it was hard, I don't remember ever feeling like this. It seems my body isn't my own anymore, that in the course of a few weeks it turned old and decaying, and it refuses to cooperate anymore. I sleep all the time, and I cannot manage to stay active for more than a few hours. I feel tremendously tired, even though I'm sleeping a lot more than usual. I cannot concentrate on schoolwork, I cannot even study properly. My mind is distant, and simple problems cannot be figured out. Tears come to my eyes more and more frequently, and I'm scared. I almost passed out today, and I don't know why. I don't feel sick, I just feel tired. I want to be left alone, but at the same time I cannot be alone. I'm terrified, but I don't want to go to the doctor, because I sense there is something very wrong with me, and I don't think I could handle it. I feel alone, more so than I've ever felt before, and I just want someone to tell me everything's going to be alright. I want the old me back. I don't know where the strength I thought I had has gone. The worse part is, all these weird sensations have kept me from homework and exams, and I'm worried I might fail something. That makes me even sadder, but it seems I cannot do anything to help it. I need help...