I dont know whats wrong with me?!

I dont know whats wrong with me?

i have headaches all the time, i always feel dizzy, i never feel like eating and when i do i just want to eat junk, i dont have the energy to do anything but sit around and watch movies all day, i go to volleyball practice sometimes but when i go i feel light-headed and i dont play as well as i usually do, i dont know if i am too thin but im 5'4 and i weigh 90 pounds and im 14.
am i just tired from being so busy during the school year? or is there some other reason for all this? i just got glasses cuz i have astigmatism and nearsightedness could it be from that? why do i feel and act like this?

try going to a doctor hunny. something may seriously wrong with you, just as well it may jus only be a change of your hormones. but try to get something good in your stomach, if u dont eat at least drink some good supplements, but to be on the safe side tell your parents and head off to a doctor!