Recently, I have been feeling a little "off". At random points during the day I become dizzy, confused, clammy hand, cold feet, head rushes, antsy, and off balance. I recently went to the er and they performed blood work and everything checked out just fine. They also performed a cat scan and they said that was fine as well. The doctor said that I might be going through withdrawal, but I don't know from what. Here is my story:

in sept 2006, I became a vegetarian and began working out again. I supplemented my diet with protein shakes. I would consume anywhere between 100g-200g of protein a day. Before I began working out I was 5 foot 9, 185 lbs. Now I am 5 foot 9, 205 lbs. I also started taking the following weight-lifting supplements: n.O. Xplode, nitrix, and cellmass (all made by bsn). About a month ago, I quit taking the nitrix. Following that I began to quit drinking the protein shakes. Once I began feeling like this, I quit taking the n.O. Xplode and cellmass, as well. I am wondering if these are in-fact withdrawals I am having, if so how long will they last? So far it has been about a week and a half. Every time I start to feel this way I have to stop what I am doing and relax and eventually the symptoms go away. Since my er visit, a little of my worries have gone away, but I continue to feel “off”. They told me to get plenty of rest and drink plenty of fluids, which I am currently doing. What is wrong with me? I have scheduled a follow-up appointment with my doctor. Is there anything that I should have him look into? Help!