Yes, I have the same here! Except DD is 20 months old and I have been for an eternity to get her to 1. switch from bottles 2. drink any water.
We have SO many different kinds of cups in our house but she is not interested in having milk from anything but a bottle. She was formula fed but since switching to cows milk she drinks even more bottles of milk than when on formula, twice what's recommended!! She still eats well though.
She would only have a few sips of water from a straw or miracle cup up until about 3 weeks ago when we have had a change. She will now drink water from the nuby cups she has. She has also started using the handles on her bottles of milk and drinking it herself. I hope eventually she will switch over to milk in the nuby but I think the bottle is a great comfort to her.
Also, she drinks a lot more milk when teething, could that be the same for you?
DD has plenty of wet nappies so I have just persevered with offering water in two different kinds of cup (straw/nuby/miracle/tommy tippy sippy cup) put out in the living room for her to ignore every morning.
I know the bottle swishes the milk round the teeth, which is not great for teeth, but I don't think she'll move on till she's ready, she's too stubborn! If she has milk in a sippy cup for example she will take a few sips then ask for milk, ie a bottle she can chug!
My HV has always just said to keep offering the cups. Good luck!