addiction..... and optifast
I kept up with a full-time job, 2 university courses, and a 7-year-old while on Optifast; same level of exhaustion as usual, lol! Seriously, once the hunger started to diminish after the first few days, I really wasn't lacking in energy. And, like everyone else, I was obsessed too... for the entire year and a half that I waited, and increasingly as it approached. Totally normal!