I can understand not being comfortable to put it away for a while and more so I can understand getting strung out as you are saying lately. I have been there. My longest stint was to work 51hrs straight with no sleep. I was not coherant at all after that, barely speaking in complete words much less sentances. It is best, and I know how tough it can be when you are relyed upon by many, but sometimes man you just have to accept that you have reached your breaking point and take time for yourself. You sound like you need to take a day off from everything and just get the rest you need. Our senses and reflexes are what we depend on most and the more you let them deteriorate the more likely hood of making a mistake, often times one we can not undo. I like having you hear to chat with. Get some rest as soon as you can buddy.