and it's annoying the hell out of me. What do?
It might seem odd but your diet can actually be the culprit for this. I used to have it all the time and I thought it was because I was always sleep deprived but then I realized that I was simply having too much potassium in my body. Be careful because eye twitching could also be a symptom of an underlying brain or neurological disease.
Hrrrm.. well..... ok.. the Action potential, the signal chain along your axons, utilizes Calcium , Potassium , and Sodium.
I have no idea if eating too much potassium would cause anomalies.. but, in an oversimplified sense, it's possible.