Been having twitching all over for 2 weeks. clean emg other than twitching in foot. how long should i leave it? could it be anxiety? what should i do?

It's possible but...: Likely nothing big & it'll stop soon. If you've had an EMG already. (which I think may have been a bit aggressive) but I don't the rest of your case...I'm just sayin'. I've seen so many people going nuts since this ALS bucket challenge that...well, whatever. Have you had some general bloodwork done? That could also complement what you had with the EMG, some electrolytes, thyroids, etc.