Hi! On and off these past few days I've had this really bitter metallic taste in my mouth. I was on depo previously and I received my last shot in April. I didn't go back and get another one because I was bleeding for a month straight. So far since being off the shot I had two cycles. I had my last one on oct 1. I've always been irregular. The metallic taste first happened Monday now again today. I am having mild cramps but no period. Can anybody explain this?