Sometimes I am not able to see if I am actually tired or I know that I have to rest 'the right' amount of time, but I do not actually sense it. This (I think) is because I'm used to think it works that way, but it doesn't.. there must be somewhere in the flow of thoughts something that has to disappear or appear, at least this is what makes me feel more 'real' about myself when I think too much (or probably I'm totally out of context)