Big hug coming at you Noni! !! I don't know very much about bottle feeding but is it possible she's sucking a lot of wind because of the sort of teat on the bottle...? Or do you think it might be a bit of reflux - they are ok upright with reflux but start crying as soon as you tip them over. Have you tried keeping her upright in a sling to sleep during the day? Might be worth a try...