For at least 12 hours or so from last night to today, I was more than tired. I was fatigued. I was exhausted. My brain was tired. I don't remember the last time I had this issue. I wasn't scared at all, but it came upon me suddenly. Having a tired brain is no fun, not fun at all. I have suffered from some of the classic symptoms for a few days, but depression could also be a cause, so could having anxiety. Strangely enough despite the tiredness, my mind was calmer and I wasn't feeling anxious. I guess that is a plus. However, it is really a negative. I need to slow down, which can be hard for me to do. Meditation is quite a challenge, but I guess it can be done.