My little one is 6 weeks and for the past week or so is getting really distressed after feeds

She is breastfed during the day and formula at night

She will pull if the breast, scream and cry but seem to still want to feed. Put her back to the breast and she does the same. This can carry on for quite a while until she either falls asleep or she will feed to sleep

She is also the same on the bottle in the evening. But seems to be okay during the night feeds

I've noticed she sometimes pulls her knees to her tummy when she cries - colic?

She had infacol before each feed but I don't feel it helps.

Any advice or experiences?

Thanks X