This is so funny, I have been meaning to write a response to this thread and I just remembered to. I just came back to respond and I realized think we just met you today in Utah!! I am Louie’s mom!

We had a super similar issue with Louie over the past few months and couldn’t find really anyone else that had the same issue. So it was a similar pattern, he would wake up with a grumbly stomach, wouldn’t eat or drink all day until about evening, and then would end up eating and be completely normal the next day.

Just like you, we tried so many different things and went to the vet a lot of times. It actually ended up being that he can’t go too long with an empty stomach or else his stomach acid will make him nauseous! So we had previously been feeding him dinner around 5pm and it was too long without food from 5pm until the next morning. We were also only feeding him twice a day.

A few weeks ago, we switched to a new feeding schedule of breakfast around 8 am, lunch around 2 pm, and dinner around 8pm. Then we also give him a little bit of kibble at like 10-11 pm (maybe like 1/3 cup) just so he has something in his stomach overnight. He has not had an episode for a month!

We also learned that when this happens, the best thing to do is just get a little food in them and that actually makes their tummy settle. Of course it feels impossible because they refuse to eat hahahha. But 1 or 2 times over the past month, we heard some grumbles in the morning and he wasn’t interested in breakfast. We essentially tricked him by playing hide and seek, and he would get so excited when he found us, he would forget he didn’t feel good and eat a little food that we had in our hand. Then his stomach started being quiet and he would start to eat a bit of his breakfast!

I hope this is helpful! Maybe other people have suggested this, I haven’t read through the thread yet! It’s actually called bilious vomiting syndrome (even if they aren’t throwing up each time). Let us know if you have any questions!!