Bifibaby Probiotic

Anyone feeding bifibaby Probiotic to your baby? My daughter PD prescribed her that to ease colic but I realized ever since she had the probiotic since day 1, she became extremely uncomfortable. And she began to drink less milk. She pooped twice a day instead of usual once a day. But she seems really uncomfortable or to say unwell. Her feeding schedule all went haywire for example at 2pm she drank 50ml then she rejects the milk like mad with anger and hitting the bottle away, then doesn't want to sleep (usually she will nap awhile after her milk), then at 2.45pm she will want to drink milk again (because of the insufficient intake previously). She's currently 1.5 months old and drinking 100ml every 2-3 hours. Should I continue to feed her the probiotic? Tried washing the bottle that I dripped the probiotic in to mix with her milk during 1st feeding of the day and realized the bottle was sooooo oily as though I had butter spread all over it.