Pls dont worry about staying the same, u can stall at any time. I am 12 weeks and have stalled 4 times already the first time being day 6 for 3.5 weeks
A stall is normal and its just ur body catching up with all the massive changes that has happened since ur op and can last a few days to a few weeks.
Measure urself as most times if u stall for more than a week or 2 u would of def shrunk.
I am sure its not down to eating 2 much as at the stage u r at its highly impossible, unless ur having about 2000 cals a day
I know its disheartening when we stall but pls dont think ur doing anything wrong as this is all part and parcel of wls.
Hope that has helped u, take care luv Roch xxx
Lol just realised u had ur op on my birthday