My baby is 12 weeks old and I mix feed her. She has two bottles of formula a day and the rest I breast feed. Recently she has become very fussy especially on the bottle at bed time. We thought it was due to needing to move teat size but although she took the variflow teat (tommee tippee) today really well we were back to the same problem tonight. She thrashed about and goes like a rod of iron-she then had a hell of lot of wind tonight, more than she's ever had! Last night I ended up breastfeeding and tonight we put the old teat on and she was ok ish in the end. She is also then waking up every couple of hours and feeding through the night. She is also occasionally waking up screaming, or crying in her sleep (mainly this is in the day) which is very upsetting for us both!! Shenis much better through the night and in the day though is still a bit unsettled. I have wondered if she is not getting enough milk from me but as she is doing it on the bottle too I just don't know.....any ideas?