My baby’s birth weight was 3 kilograms, and at six weeks, 3.6 kilograms, then later at ten weeks, it was 4.3 kilograms. The doctor said she is not gaining weight quickly. She refuses to drink milk from the bottle, only drinks from one breast, sleep for 30 minutes or so, and then wakes up again. How do I get her to drink from the bottle? She was drinking from a bottle for a short time when she was around four weeks old, then I stopped that and just breastfed her.