Thank goodness I'm not having your level of symptoms. My worst ones were paralysis on mainly the right side and slurred speech. Not sure of the trigger, as the first time it happened, I was just falling asleep. My wife and I were both convinced I was having a stroke, but by the time the EMT's got here, it was over. She drove me to the ER and they did some tests, which all came back negative. My first clues were just some numbness in my right leg and arm and I just though I had pinched a nerve and they had gone to sleep, but went to the ER anyway . That was when they kept me overnight, did the CT and MRI and found no blood clots, so ruled out strokes. The longest my episodes have lasted is 30 minutes and that has only been maybe once or twice. 10-15 minutes is the norm, thankfully. I just sit quietly and they go away. I'm using my computer to reply to you, as using my phone does make me concentrate harder and increases headache, but not sure if it triggers anything.