My baby is 6 months old and has been sick after every bottle since she was born (almost). I've tried every milk on the market, been to the doctor, the nurse, the midwife and the HV.
The result being that I have and I quote "an overactive greedy baby".
You get used to cleaning up sick. She hasn't lost any weight (in fact has gained loads!), she is happy and sleeps right through the night (12 hours) so was advised to "just put up with it!)
Now that she's on lumpy foods, the sickness has definately calmed down.
Hope this helps, your not alone out there!