I've had three, 3 week old babies for a week now and I had them on esbilac which caused constipation so I purchased FV 20/50 and I mixed 1/3 into my mixture (so I do 1/8 c esbilac with 2 parts water, and I mix in 2tsp prepared FV into it). Two of my babies are now pooping like champs but 1 seems to be struggling. I'm still able to get her to make a bm at every feeding (every 4 hours) but the consistency is like a thick mustard and not formed like my other two. It's difficult to get her stimulated to poop and she seems to struggle to get it out and isn't producing much. I did skip a feeding and gave her fluids (pedialyte) but I don't feel like it made any difference. Any suggestions on what I can do differently to help?