I don't like Mondays

I remember that Elvis Costello song( Actually, it may have been the Boomtown Rats, or both)....... and I do not like Mondays. They seem to be toughest day......I seem to more hungry, less motivated to exercise and a little grumpy. I am not sure why. It is not like Mondays are anything real bad for work, etc. I guess my big issue is why I am more hungry? I used 3 flex points today. I usually do not use 3 flex points in a week. I had plenty of water, plenty of veggies but lots of points and no exercise what so ever.......
Oh, tell me why,

I don't like Mondays.................