THe emotional side of fasting

I haven't delved too deep into the history of this forum but it seems to be more about physical aspects of fasting. Anyone have input about their emotional journey on a fast. Today is Day 7 for me and I had no physical pain/discomfort today as I've had to some extent the last 6 days. In fact I've been chock full of energy and confidence today without any hunger pangs. But, I've been mad and with a short fuse! In the past I would kind internalize or brush off anybody giving me crap but today I didn't. Calling people out and standing my ground and not being agreeable when I usually would. I have to continue working during my fast and for the most part I sit at a desk all day and am left alone. But do have to deal with people and their opinions about my work. Is it part of the process? Thanks for any thoughts.