Sorry that your eyelid is giving you problems. I would tell you that you do not have ALS. We see EMG changes before fasciculations in ALS, and definite muscle weakness before fasciculations. It would be unusual to have isolated eyelid weakness in ALS, especially since you have had symptoms since april. I think the most likely explanation for the droop is that the fasciculations are draining the strength from the muscle that raising the lid and you have a very minor droop. The eye muscles are extremely sensitive to changes in energy level and usage. After a very prolonged time of use (as in a fasciculation) there might be a lid droop. I would say the droop is more muscular than nerve and most likely will resolve as the benign fasciculations resolve.
CCF Neuro MD