Help a mother out...wind problems!!!

Hi ladies...i need some help! I have a baby girl who is 17weeks now (however was 8 weeks early weighing 3lb8oz). She was fine in neonatal as she only needed tube fed and was let home 2weeks after!

She is now 12.5lbs and keeps her feeds down but from we’ve got her home she has had awful problems with wind 🙈I’ve never met a windier baby!

We have tried all the gripe waters, colic drops, infacol and herbel remedies, charms/cures, changed her formula to a less lactose blend which we thought would help but to if no avail! She’s not allergic to lactose/ dairy or anything! She does get wind up during her feeds but she just seems to hold onto some?🤔🙈

The wind wakes her up from her sleeps...

She has a large herniated bellybutton where can just hear the wind rolling about in! We have taken her to a specialist to look about it but he said it’s causing her no harm or discomfort and will sort itself out but I just have an hunch that, that is what her problem is an us not helping her?! Our local GP and health visitor have not been much help at all and we’ve gave up contacting them!

Has anybody any other ideas what I could try?!