I have only been on it for less than 2 weeks, but I am having not...

I have only been on it for less than 2 weeks, but I am having not really panic attacks as muchas a horrible foreboding feeling, heart racing, a severe pain in my right knee and leg to where I can barely walk. It was fine before and even taking a sleeping pill, I wake up all night long, have to get up to go to the bathroom, severe dizziness and vertigo - all which I did not have before taking it. It has dropped my BS really low, also have sweat attacks.