Constipation - switch formulas?

[naomi54]

Well his poo's are not like that at all, they are still half soft atleast.
He only poo's every 2nd day, and his face goes quite red and he really pushes, his eyes get all teary looks like he is about to cry (but doesnt), i feel really bad about it when its "poo" time. His poo's are still mustardy colour, not like pebbles, not completely soft more hardish but still soft enough to prehaps not call it constipation iykwim

The other reason i was looking at changing was b/c he has really bad reflux, he often wakes him self up b/c of it, and it seems to take his breath away most times.

Is there something i can use instead of changing formula??
Now realising he's prob not constipated, but on the verge of it. Ive tried other things to help him along, its just that 2 week ago he didnt seem to have this problem and he was FF then, and had been for 2weeks.

I dont know this whole, guess whats wrong with your baby and make the best choice for your baby is hard.
I dont want to screw him around if he doesnt need to change formula's but also dont want to mess him around with other things, if changing formula's helps iykwim

being a mummy gets so confusing some times..........