I'm about to namechange anyway so I don't care about the flaming I'm about to get.
I have massive boobs and oversupply so breastfeeding discreetly is difficult. I also use a sling so I get very warm with DS's body against mine. If I wear a vest top underneath my normal top I overheat. It it really so bad to not give a shit who sees what while I'm breastfeeding? It's not like I'm waving my boobs about, just lifting my top to feed my baby but that might mean a flash of nipple now and again.