Wow! You just described my son ~ I can relate. My son will only take breastmilk ~ no formula, nothing in a bottle! He will take juice from a sippy cup only and eats only big people food ~ no baby foods since he was 6 months old. He stopped taking a pacifier when he was about 5 or 6 months old AND by the age of 5 1/2 months old he had 4 teeth!! The best advise that a friend gave me was "don't be afraid to yell if and when he bites down". I can only remember 3 times that he bit down, tears filled my eyes and I yelled out in pain ~ he doesn't do that anymore. Thanks to orajel & hyland's teething tablets. He now has 8 teeth and is 10 months old and yes, I still breastfeed him.
Our peds doctor suggested given him pediasure instead of milk ~ maybe that would help you. In the beginning, I was able to give him soy formula (have you tried soy formula yet?) with no problem for about 3 months; alternating every couple of feedings. When I started to switch him to milk-based formula he started to reject it.
Another suggestion, put a wet wash cloth in a baggy & place in the fridge till it gets cold. This helps with the pain and swelling; water-filled chew toys chilled and occasionally cold pacifiers help.
I understand if you get frustrated, I DID. When my son was first born and for several months, I breastfeed him every 45 mins/per hour for about 5 to 15 mins. Then had to hold him in an upright position for another 20 mins or so due to his acid reflux. All I can say is my house and everything else waiting until he was on a better schedule. I does get better.
Just be patient,
J. W.
Mom of three (Ages 9, 4 1/2 & 10 mos)