Hi everyone. I'm an experienced Paleo eater who is trying Fast 5 to lose some weight. Today is my 5th day with an eating window from 4-9p.m. I am still starting to lose concentration and feel pretty darn hungry around 2 every day. I'd love some feedback about how long I can expect this to continue. I felt great this morning but it faded and I'm still waiting for that all-day energy high!