My 4 1/2 month old has reflux. Since starting formula we have had constipation issues. The doctor prescribed lactulose. She said the goal would be to adjust the dosage to get him to have one bowel movement a day. He hadn’t pooped for 4 days when I gave it to him on Sat. I gave him 1/2 tsp. ful. He did not poop on Saturday. On Sunday I gave 1/2tsp. twice (once in morning and once at night) and no poop. Yesterday I started out with 1/2 tsp and he had a huge blow out in the morning. It was runny and went everywhere. He seemed super uncomfortable for the rest to the day. He seems very gassy and bloated so far with this medicine. Has anyone else used it? Will it get better or should I stop using it?Thanks!