Almost everyone has been through this at one time or another. My oldest slept through the night at 5 weeks and then started waking up several times during the night after an illness at 8 months. My doctor's advice made the most since to me. Stop feeding him! When he woke up crying, I assumed he was hungry and gave him a bottle. This trained him to wake up and be hungry at these times. To wean your child off the feedings, slowly reduce the amount in the bottle. My child also would not take a pacifier, so after about a week of reducing the feedings, I gave him a bottle of water. This worked great as far as limiting the number of times he woke at night.
Now the bedtime routine is also important. If he is falling asleep on the bottle at bedtime, then that is his sleep cue. If he wakes during the night, he does not know how to go back to sleep without having the same situation. Make sure that you put him to bed sleepy, but not asleep. He needs to learn to go to sleep alone in his crib, without the use of a bottle (or rocking, or pacifier, or any other method of soothing.)
After you have weened him from the night feedings and he is able to fall asleep alone in his crib, then you must allow him to cry. This was the hardest thing I had ever done, but it worked after two nights. When he wakes up, let him cry for a few minutes (whatever you are comfortable with), then go in and pat him, tell him to sleep and leave without picking him up. If he cries, let him cry a little longer the second time, before again going in and comfort him, then leave. Continue to allow him to cry for a little longer each time, until he falls asleep. My son cried for about 15 minutes the first night, then about 10 minutes the second night. After that, we never had another problem.
Every child is different and so some kids may take longer. My younger son was much harder. He was more stubborn and he had never learned to go to sleep alone very well. The first night he cried for 45 minutes, then threw up in the crib! What a mess. Stick to it, it will be worth it for the long run. A few nights of crying will not harm your child, but give him the ability to put himself to sleep. This will serve him well for his entire life. K. B.