Hi ladies, I'm hoping some of you will have some experiences which can help me make a more informed decision.
My little one is 12 weeks today but was IUGR, born 3 and a half weeks early and in neonatal for 3 weeks. He didn't get on with breastfeeding so I have been expressing. Ever since birth he has had some formula, mainly the Aptamil 1 pre-made bottles.
Up until about 3 weeks ago he was getting about 70% breastmilk and 30% formula but now he's more awake I'm struggling to find time to express so we've slowly been shifting to 50/50 and now more formula than breastmilk.
Obviously those little bottles are expensive so now we're using more we have bought the powder. He is a very colicky Baby and had been screaming through feeds so we tried gavsicon but it bunged him up which was worse. So I then decided to try Aptamil Comfort but despite it apparently being good for constipation he is so unsettled on it, straining all the time and struggling so much with wind.
I just don't know what to do for the best. I'm wondering whether just the odd breastmilk feed isn't helping and it's confusing his digestive system. Does anyone have any experience? I'm thinking maybe I should just move completely to formula but obviously know the value of breastmilk.
Ultimately though I would like a happy baby and at the moment he just seems to be continuously in discomfort and I'm feeling like a crappy mum 
Any advice would be really appreciated!