My baby is 2.5 months old and have the same problem:-(
The doctor said it is common that some babies refuse to drink milk for a period of time.
When my baby refuse milk, I will stop feeding immediately and let him clam down and sleep for a while. Usually, after 0.5 to 1 hour he will wake up and finish the remaining milk. Wish my experience can help.
If it is due to the wind in tummy, my doctor gave me a kind of medicine for this problem but it seems doesn't work.
A nurse also teach me to solve the "wind" problem as follow:
- add a drop of oil on your hands
- rub it until your hands are very hot
- dry the oil tissue, your hands is still hot
- put your hand on the baby tummy then the baby may feel better