I've done four weeks on 2.5 and 5 and have taken my first 7.5 on Sunday. I hardly had any side effects - a bit of indigestion - and I've had the food noise disappear but not the full feeling.
Since taking my 7.5 on Sunday I can't really think about eating anything - it feels like that has really, really ramped up. I now feel that I will have to consciously make an effort to eat.
I know it's only a couple of days, but has anybody else felt this with 7.5? How have people found 7.5?