Weight Loss Diary 8: 4th week, seeing challenges

This morning's measurement shows 146lb, and along the week, up and down between 145 and 146.5. So I see trend is not as obvious as the first few weeks. Below are the possible reasons:

a. It was holiday long weekend, maybe I eat more unconciously?
b. Maybe my bady adjusted to the new metabolism?
c. Maybe I weared the belt on and off, which doesn't help losing pounds?
d. Didn't go to YMCA for swimming, maybe that changed the rhymes and routines?

Anyway, I need to be patient and continue to persist, "sit less, move more". :)