hi all, so been on 2.5 had my 4th shot on sunday and i have maintained this week, had some really good loses the other weeks, so disappointed. i have got my next pen and gone up to 5. i am hoping this is just a blip. been on a few groups on FB reading peoples advice to others. Question is it correct that 2.5 is to get the body used to the jab, and going up wards is when it really kicks in?