I HAVE HEADACHES ALL THE TIME, TENSE NECK, FEEL NOT LIKE MY SELF. I

i FEEL LIKE I AM OLD. I AM ONLY 24 AND I HAVE HAD HEADACHES FOR THE PAST TWO MONTHS. I USE TO FREAK OU, AND I WOULD HAVE SEVERE NAUSEA, I WOULD NOT EAT ANYTHING GREASY CAUSE I THOUGHT I WAS EATING WRONG, BUT ALL I DID WAS LOSE WEIGHT. I DONT WANT TO LOSE WEIGHT, AND NOW I FEEL LIKE I AM NOT GOING TO BE ABLE TO WORK OR BE HAPPY AND HEALTHY AGAIN. I ALREADY WENT TO THE DOCTOR 2 TIMES AND I WAS TESTED IN MY BLOOD FOR DIABETESE, THYROID, AND CHOLESTAL, AND ANEMIA,....I WAS NORMAL...MY JUST I HAD JUST ABOVE THE REGULAR PLATELET COUNT, SO I WAS NOT ANEMIC. I WAS FINE. ITS JUST WHEN MY MENSTRUATION IS ABOUT TO GET HERE IT TAKE FOR EVER, AND I GET REALLY WEAK. NOT WEAK THAT I CANT GO TO WORK I JUST CANT HAVE ANY MORE ENERGY TO DO A LOT OF TASK. I USE TO BE SO ACTIVE NOW I JUST FEEL OLD. I RESENTLY BROKE UP WITH MY BOYFRIEND BECAUSE I HAD A LONG FOUR YEAR RELATIONSHIP OF PHYCOLOGICAL ABOUSE, AND I DID IT CAUSE I REALLY WAS NOT FEELING GOOD PHYSICALY.