It's not supply and it's not teething...She has a boob at 7am, around 11-11.30, somewhere between 3-4 and then bed time. She has solids at 8.30, 12.30-1 and 5 where she has water to drink. She has nipped me a few times over the months, but nothing like this. When she has done it in the past I have taken her off the boob and said "no" and laid her down next to me and that always worked. But this is different, its not just a little nip, she clamps down with her teeth and then pulls back. I think she likes the reaction it gets too as she always laughs and giggles at me shouting or screaming and putting her down. Also since posting the first time she starting biting me generally. Yesterday morning she bit my cheek and neck in the same way. Had a terrible time with it last night again, but distracted her with a toy and put her on the other boob which seems to work.