My problem isn't really that it's too low, but that I forget to prepare water and the 5 mg at my bed before sleep. So I should probably do it in the morning, with Medikinet in my system. Because once I take it, it does work very well, and I notice once it goes back down (as long as I actually do something requiring my concentration). Driving without and with is like night and day. And after noon, especially noticeable in exams, everything drops down.