D..
Both Tori and Gramma are right. He is done with the bottle.
Sometimes you have to accept sensitive and cranky for a while in order to get a child to have better behavior.
Do you have Cheerios where you are, S.? If you do, Cheerios are really good to put on the high chair tray so that baby can learn to pick them up and eat them. They dissolve really well in their mouths too.
I don't know what cerelac is - most moms here in the states make cereal of some sort, like oatmeal. He's old enough to eat with his own little spoon. He will make a mess, but that's okay. If you can find a type of baby bowl that has a suction cup on the bottom that holds to the tray so that he can't knock it off while he's putting the spoon in it, that would help you. The trick is to only put a little food on his tray at a time. That way, if he throws it, there's not so much that goes in the floor.
Around this age, babies will eat just so long and then they are not interested anymore and want to explore their world. (That includes exploring food with throwing and putting in their hair!) So don't expect him to spend a lot of time eating. Now's the time to introduce the healthiest choices you can, but don't give him a lot of fruit. If you set up his taste buds now to get used to the taste of "sweet", he will not want the veggies or meat. Wait until he is more used to eating before giving him cut up fruits.
When he refuses food in the high chair, or starts to throw it, take the tray off, clean him up and put him down. When he wants some formula, put him in the high chair with his sippie cup, and work with him to drink it out of the sippie cup. Stay right there with him so that he doesn't bang the cup or throw it. Don't let him run around with the sippy. It's a bad habit to allow him to get.
If you act like it's the most important thing in the world to get him to eat, then he will realize that he can stage "hunger strikes" and you will run circles around him to get him to eat. Don't give him that power over you, S.. Instead, give him breakfast - sippy formula first (he needs the milk still), then cereal. Mid-morning, give him some vegetable chunks on his tray - cooked carrots, peas, short cut green beans, etc, cut up pieces of bread, Cheerios, that kind of thing. Lunch, same thing. Nap. After nap, more sippy cup and a snack. Dinner, sippy cup, food. Before bed, sippy cup.
After the 12 month mark, add some regular milk to his formula in his sippy cup. You probably don't want to change over to milk all at once because the taste is different. As he gets used to it, add a little more over time until the sippy cup is only milk. If you are still warming up his formula now, start warming it less and less until he is finally drinking cold formula. That will get him used to drinking milk out of the refrigerator.
Your doctor is right - it IS a behavioral issue. But truthfully, you are allowing it to be by being so nervous about it. He isn't going to starve, S.. He will act like it to get you to run circles around him. DON'T. Offer sippy milk &breakfast, sippy milk & snack, sippy milk & lunch, sippy milk & snack, sippy milk & dinner, and before bed, sippy milk. If he doesn't eat much at these intervals, take him out of the chair and don't give him anything in between. He will finally LEARN that THIS is when he eats and gets a sippy. Don't give him anything "standing". He has to be in his high chair for it.
It'll get better - you just have to establish the rules, S.. And don't worry about how he's playing with the food in his mouth right now. As long as you are offering healthy foods and giving him the sippy formula first, it will be okay.
Dawn