I have overloads on an almost daily basis, however once in a while (Once every month or two) I have one that I can feel gradually building for two to three days and once that scale tips I have an overload that triggers my trigeminal neuralgia and mimics a stroke. I have been to the emergency room when these first started but was always told "It is a migraine". I have massive difficulty with brain function. The whole left side of my body goes weak, numb yet feels like my skin is crawling. Movement feels like struggling in neck deep water while trying to do anything and it takes me three to seven days to recover form it. I has one yesterday and just writing this took all my concentration and about thirty minutes to put my jumbled thoughts into words.