hi i'm 34 yrs an i'm usually have my periods on time only one other time was i late but i started, but now i haven't had a period sense jan 15 of this yr 2013 . been to the doctor an they said that i wasn't pregant but still no period i took a lower ultrasound an up just below my belly button an they said everything looks good, so i'm know more when she comes back on vaction on monday. but i had all the signs like i was pregant my boobs hurting still most of the time not as bad now an stomach pains hurt pretty bad too sometimes an tired alot i have some medical problems i have to take calcuim for the rest of my life cause i 'don't produce calcuim.. but all that is normal an i have thorid problem its all normal too i been also geting sick lately like nauseated off an on. having light headaches too.. i'm kinda over weight not too bad, so i don't know whats going on i don't think i;m stressed out or anything. anyone tell me an idea what they think ty casey