I'm doing the light show for a panto. LO has been to every rehearsal and show so far- she's even been on stage for a final bow. 
So far i've managed to bf throughout but Saturday is the final aftershow party. I'd like to stay for it and have a drink.
My question is will my boobs be able to stand it if I give her a FF bottle from about 9pm through to morning? I could express when I get home about 3am, although not tried expressing yet. I'd also have to give her a FF bottle in the night if I'd had a drink -planning on 5-6 units 
I could even leave her at home with DH but then it would be from 7pm until the following morning, and that might be risky in case she doesn't take to the bottle.
Will my boobs be too uncomfortable and will it massively affect my supply?