I never had headaches and now I have them all the time, I have pain all around my stomach and back pain which comes and goes and I wake up with a lot of mucus and crusted eyes I feel sick all the time but I only vomited once I've been really thirsty lately to and I have a loss of appetite I get hungry but can't eat it all I been getting really dizzy and light headed a lot and I've been really moody and wanting to cry about everything could I be pregnant?

If you have been having sex you could be, although some of the symptoms you've described (such as crusty eyes) aren't pregnancy symptoms. I would see a doctor to find out what is wrong. You could just be sick.

Have you even missed a period yet?

If you have had unprotected sex, then yes pregnancy is a possibility. However, the symptoms your listed above can be caused from a number of illnesses as well. Headaches can also be a PMS symptom. Have you missed a period? If you have, take a HPT. You should also consider making an appointment with your doctor in order to determine what is going on with you body. Keep in mind that whenever you dwell on something, like being pregnant, you can actually trick your body into "feeling" like you pregnant. Good luck and see your health care professional ASAP.

You sound like you could be ill and dehydrated. It could also be a kidney infection, even diabetes.

Sounds like its time for a doctor's appointment.