From about that same age both my girls hated food and for the most part they still do. The pediatricians (if they're any good) will let you know if they're sliding down the weight expectations too fast. They'll suggest a whole regiment for calorie packing, which I suspect kept my girls from liking food because it does indeed alter the flavor of things.
Developmentally my girls are totally fine. One is pretty much at the bottom of the percentiles for growth in every physical level but you would never know based on how she learns, plays, speaks, etc.
When they were younger it was a huge challenge to get them to drink even 9 ounces of milk or formula a day. They say babies should drink something insane like 32 ounces but I lost track of the suggestions because mine wouldn't come anywhere close. The doctors gave me probably a dozen calorie packing books even though I explained to them over and over that eating 0% of a 200% calorie packed meal is still 0 calories. After the years of battle, the general rule that babies won't let themselves starve seemed to be true. If it's not true, you will know it by their behavior, lethargy, and rapid decline in weight.
I'm no doctor or official source by any means. But from experience I can say all the trauma my wife went through fearing the doctors would confiscate the girls or medically intervene with G-Tubes or some other forceful way of feeding was unnecessary and even far from the reality we dealt with. If there's a reason to panic, they will tell you long before they resort to tubes.
What worked for me, since I was the one feeding most of the time, was occupying them with different environments and experiences while holding them and holding the bottle. It would take 20 - 30 minutes per bottle and they would usually only get through 3 ounces before you could tell they were done with it. I would let them touch lights, curtains, go outside and touch trees, flowers, etc. Anything to get them off the subject of refusing the bottles.
By the time they were about 1 1/2 maybe 2 years old they were pretty much reliable about feeding themselves, though to this day they still don't eat much. But the hype and hysteria surrounding feeding like this - that they will never eat on their own, etc, was not entirely true for us. Yeah, it was a long and absolutely horrible ordeal that is currently its own nightmare, it is at least tolerable and the girls are growing, learning, playing, speaking and being kids just as they should.
So what should you do? Hard to say because I don't know what you are currently doing. But you can try what I did and hold her in one arm, the bottle in another, and walk around getting her to look at things, touch them, go outside, or anything else you can think of that makes bottle time a fun time. Getting angry even once could reset that to bottle time being a really bad time. Happened to me more than once. I concluded these things because the suggestions from the doctors did nothing. Occupational therapy was a waste of time and money. Turns out just being close to my kids was what did it.
Good luck though. I would have to be institutionalized if I had to go through that again.