The other night, I threw up. Next day I didn't eat cause of the throwing up. Had to go to grocery store and as I was checking out, I nearly passed out. The clerk called someone to help me. My arms and neck were killing me. Could not raise with pain in them. I was very dizzy. I have fainted before in the shower and several almosts in the shower. Don't know what is going on. I do have a doc appt next week but was wondering if anyone experienced this.