Hmmm...I just went through a similar thing.
About 7weeks ago my DS started to refuse the bottle, I put it down to teething, then when the first teeth camethrough he was eating solids but stillnot wanting milk, he drank water fine though.
Then he had an ear infection alongside teething so I assumed once the antibiotics kicked in he'd be back to normal..NOPE!
So basically one out of 4 milk bottles offered he would take maybe 1/2 (120mils).
This went on for 7weeks...I tried reducing solids, changing formula, changing bottles and teats, distraction, delaying feeds, delaying solids etc etc etc! I tried EVERYTHING!
So I added milk to all solids plus added grated cheese and in one of his solid meals I pureed chicken. He was getting water fine. I started to count calories rather than milk, because he just point blank didn't want to know...
Now 7weeks later out of no where he has started to drink his milk again!
I do know when I kept offering his bottle it seemed to get him more and more upset, i think this made him want to refuse the bottle more...Could offering your LO BF freaquently being doing this too?
My DS is very big at 11 1/2 kg's in size1-2 clothes, I was told besides the teething and ear infection he could have had a growth plateau. Could this be a possibility?
Sorry I can't be of more help, I just wanted to add that I went through a similar thing for quite some time and eventually all has settled down...