Bex is right I tried some olive leaf extract recently and had some huge die off I think. It felt more like big time movement of mercury though... I had muscle aches and weakness, tremors, headaches and bad depression with uncontrolable crying. Felt just like I did 6 months ago. Maybe organ dump of mercury...have not experienced that yet...so could be that. I have found though if you start killing yeast you will also release mercury,viruses etc too so it's really hard to say. Stay on track with the diet...that will help the most and you can release toxins slowly so you don't overload the body and have alot of pain.
Rachel