High?

I had a strange experience while eating breakfast this morning. After doing a speed session this morning that I was just able to complete I came home took a shower and sat down to a big bowl of cornflakes. Somehow this tasted better than I've ever remebered I just woofed it down like a man obsessed. It was only after I finished that I realised that I've had that experience before, but before it wasn't fueled by a fast run but something else, I did as a misguided youth, yes I had the munchies. Is this possible? Or was I having a hunger induced flashback?