Side effects of SMA althera??

Just needing some advice, my LO has recently been diagnosed with CMPA and started on althera 2 weeks ago and overall she likes it but I’ve noticed mucus in her poo’s, she poo’s during or straight after the bottle and gets bad wind/discomfort but only in the middle of the night- are these normal side effects? And/or anyone else who is using althera have a similar experience?