Then talk to dr and he may change fm or change the feeder nipple

Hi latch baby frequently to the breast so that baby can suck and will increase the supply of milk as in response to sucking of baby breastmilk increases as its a reflex action and take lots of fluids in the diet and simple homemade food like khichdi daliya etc And take lactonic granules twice a day in milk

Boil it on purify water

Hi how many times you feed and how many times baby passes urine?

Have you changed anything about the millk? Try a sippy cup instead. How do you give your baby water? try the same for milk.

Hi latch baby frequently to the breast so that baby can suck and will increase the supply of milk as in response to sucking of baby breastmilk increases as its a reflex action and take lots of fluids in the diet and avoid caffeine and junk food both and take lactonic granules twice a day in milk

Why do you want to introduce bottle??

You can give bm till 6 months,
After that you can give semi-solid foods along with bm or fm.

I shared some ideas you can try to gradually wean your baby off breast feeding. Please read this and see if these help
http://bbgo.co/1pmo/4FvIGwm3jB

Why you want to give bottle milk now?

You can start by expressing some breast milk in her milk bottle and some drops on the teat before you offer her the bottle, that will most likely trick her info accepting the bottle:) You may need to do this for a few days till she gets comfortable with the bottle on her own. In the mean while, make sure you introduce her to home cooked food as well so that she keeps getting the nutrition she needs and builds a taste for all food