We've made the transition to mostly WCM in DS's bottles over the last 2 days. And both of the last 2 nights he's woken up at 1 or 2AM screaming. We caved and gave him a bottle the first night (stupid, I know), but didn't last night.
Is it usual for the transition to make them hungrier, or wake up at all hours? TIA!
Re: worse sleep after switching to WCM?
How much are you giving him a day? How much did you start with (a day)?
My first thought is that he's getting too much and maybe too fast. WCM is not supposed to replace formula/BM, solids are. I'm not sure what the max WCM is for one day, but I think it's around 16oz. Plus, if you gave him a lot right from the start, it's probably hard on his tummy.
Try a more gradual transition. I started by offering DS about 2oz with dinner, then another 2oz with lunch a few days later. I now offer it at lunch and dinner and let him drink more than 2oz if he wants.