i have had stomach pain (tightness), headache, feeling tired/not well for one week. The first day I had diarrhea and brief period of metallic taste in my mouth, almost like I needed to throw up but i did not, and neither the diarrhea or metallic taste has returned since that first day. I am going about my normal routine, but do not feel well enough to work out or anything. My worst symptom is the stomach pain.