Hi there, i'm not sure what's going on with me and was wondering if anybody has any idea so here it goes........ I had a depo provera shot on March 20th and have not had one since i got my period on june 20th and july 20th and should have gotten it on aug 19th but instead got cramping like i was getting it and have had brown spotting as well since the 19th, also for almost two weeks i have been experiencing lower back pain, a bigger appetite, abnormal sleeping patterns, dizziness, headaches and heartburn. if anyone has experienced this or has any input that would be great. Thank you