Haha... I am so glad that there are babies like mine. I have been having the same problem for quiet a while. There was about 6 days which she didn't drink a drop of milk at all, it was like a second 厌奶期. I tried so many methods... using different cups, straws, switching milk, etc. and even fresh milk. She started to drink after about 1 week, but still not as stable and as much as before.
Now, she drinks about 6oz in the morning, then I use the rest (about 1 oz) to milk rice cereal (do your kids still eat rice cereal?) or cereal puffs. In the afternoon, I give her a box (250ml) of fresh milk, in good mood, she finishes the whole pack, otherwise, she would drink about 3/4. Then at nite, I make her 3-4 oz of milk, and sometimes she drinks a few sip, and sometimes she finishes the whole thing, depending on her mood.
And I give her yogurt, tofu, etc.
But today, she's got a fever (1st time getting sick in 15.5 mths!!!) and she's only drank 3 oz of milk for the whole day!!!
Take it easy la. BB 飲唔飲奶係迫唔到,my baby's milk drinking pattern was very unpredictable at one point, but now she seems to be ok, drink about 5-7 oz in the morning and afternoon and 5 oz at nite. I give her formula in the morning and before sleep and fresh milk in the afternoon. You could try different formula or fresh milk and see if you baby takes it. Or even try different cups/straws, etc. It's troublesome to try so many things, but afterall, I think drinking more milk is better. But if your baby really doesn't want to drink, don't worry too much, 顺其自然la... and as Tokyogirl say, give them more yogurt (i prefer using plain yogurt + fresh fruit... less sweet!) and cheese la!