so for the past 2 weeks ive been gettin mild to severe lower back pains to the point where i cant get comfortable no matter what i do. i also have been gettin some cramping pains but havent had a period since august 11 (which is when i got my first depo shot). my stomach is hard, i get headaches, nausous but hardly ever get sick, im always tired, and lately ive been waking up in the middle of the night starving....what is going on??? i have a doc appt the 9th but i have been dealing with this for way to long with no answers as to what is going on