Sorry I posted in the wrong area, I'm new to this and wasn't for sure exactly what I was doing. I haven't had any caffeine in a year. But I will try to add some more mag/K+. I do wonder if maybe it isn't the multi-vit. Years ago when I tried taking them, they made dizzy, but never shaky, But I'm not giving up, I really need to lose this weight. Thank you all so much for your help. It's nice having others to talk to about this.