My baby(10wks) has been on Aptimal sine birth he was only having a dirty nappy every 4 days but had been at the doctor and since he was still well in himself then they didn’t see an issue. 4 weeks ago he started having explosive nappies with every feed and some in between at least 5 a day anyway. The gp sent me to the hospital they examined him and said he is fine and maybe that’s him just in a routine with his nappies but it was such a contrast from before. At his 6-8week check my gp prescribed dairy free milk to see if it’s a dairy intolerance, 2 weeks on I would say there are less dirty nappies but no major difference as such, not enough to make me think it was an intolerance. I was to put him back on Aptimal for a further 2 weeks to see if he went back the way however he has been on it for a day and had 6 dirty nappies today not watery but lots of it. I also feel that when he’s taking the last part of his bottles it’s like he wants to drink it but is refusing all at the same time, it’s hard to explain what I mean 
My question is should I try another formula and if so what one should I try? I was looking at kendamil and Hipp ? Any thoughts?
He has omeprazole for reflux also if this makes a difference to your suggestions.
Thanks