My baby started on oatmeal cereal and since then she has been having a lot of bowel movements and they are liquid.

Hello

Indeed, it is possible that she does not tolerate oats. You should try to go gradually. Her intestines are not yet used to solid foods. With time, everything may return to normal.

Watch for loss of appetite or a change in his general state of health (less happy, always tired, etc.). In this case, there could be another problem (infection or malaise)

Have a nice day

Pierre Olivier