detox effects??

I've just started growing wheatgrass and have been taking 1oz everyday for the past 3 days. I'm feeling awful at the moment. My Acne has got worse, headaches, tired. I imagine or I hope that these are just detoxing effects. Does anyone know how long these effects last for?? I'm sorta getting disheartend (spelling) by wheatgrass and the whole ordeal.

kind regards

Aussie_guy