I am new to the site and first of all would like to say that all of you guys have given me some great information. Thanks! I was wondering do any of you seem to get the heavy headed feeling and weakness when you have not gotten enough rest? I have a felling that sometimes throbs in my forehead and hovers over my eyes. It makes me weak as well and I don't really have an appettite. My eyes don't focus when I am in this mode. Can anyone help?