Can Headaches And Nausea Be A Result Of Pituitary Tumor?

Sick for a year
I have been sick for a yr now. I have headaches that last for weeks, I've lost 65 lbs, I get sick in the car, nauseous alot, and constantly break out in these big knots that secrete pus and leave a hole. My pituitary tumor is back, so I thought it was that, but my dad and brother have them too and aren't sick. I've had 4 kids, been anemic alot, had several blood transfusions, and just had a blood test run and the red blood cells were real low and so was my hub/act. Whatever that is and positive for barbiturates. My tumor was small last time but that neither was last may and I've been falling alot and eyes are acting crazy. Sometimes I can hardly see. I have no tolerance for the kids, have infections all the time, feel like crap in general, and cry alot. What should I do? Am I gonna lay here and die while they drag their feet? Oh yeah, my nose runs at weird times, sometimes bleeds, and im really thirsty!!!!