allergies?

I've been having stuffy noses, itchy eyes/throat, and sometimes running nose. I think I have allergies.
I also have problems sleeping. When I feel tired while sitting in front of my computer I feel like sleeping but when I lay down and try to actually sleep I can't sleep until I roll around for sometime.
The funny thing is I wake up several times in the morning. Like today I woke up at 6:57, 9:30ish, 10ish and finally woke up at 11ish. I just don't know why!!!