Sorry about your shoulder (to the PP). I wonder if your pound gain is not true weight gain, but water retention while your body adjusts to less activity? Don't be disheartened. Weigh again next week.. You might be surprised.
Also, to the other two PP who put on a pound or didn't lose much, also don't be disheartened. We stall a bit sometimes, but it will pick up again! Trust in the process.
I stalled for a couple of weeks, and then put on a pound last week. It was the first gain I'd had in 7 months. But I'd just started taking probiotics, and think it may have been down to bloating/water retention. But I weighed myself today, and had lost 3 lbs, which is a whoosh for me as I've slowed right down recently! I'm only losing half a pound to a pound a week now.
SW: 15 st 11 bs
CW: 12 st 11 lbs
GW: 12 st.
3 stone lost altogether!
Still on 2.5 mg.
My NSV is that I've just started a new job, which is outdoors and very physical, and I feel fit and well while I'm working. I don't think I'd have managed this before. Or at least, it wouldn't have been comfortable.