I am actually stuck on this one. I would think with acid reflux you are really watching your diet to keep out foods that would contribute to this condition. The only thing I can suggest is that sometimes it is comfort and not calories and that if you let him cry a little at night he may learn that is not the time for feeding. My sister did this because she had to work and her baby would tank up right before bed and then sleep through. But it was rough getting her to that point for a few nights. If you want to take it a little easier, you could at least lay for a minute or two and see if he goes back to sleep. I used to forget to do that and my son did get up lots just to feel the love. My grandmother even said once my aunt still got up at 9 years old because she would get up with her.
Ok, now I am getting a few more ideas. Be sure to put a wedge in his crib, but most of all pray about what to do, as that is a tricky situation. Best of luck.
OK, I am adding to this. I have heard and I did it with my boys to let them drink out of just a regular cup/glass. We started this at 5 months and had no problems, keep it to water, that should be better for his acid reflux anyway.
To get my son to sleep, I put him in a fisher price rocker/recliner and he cried for 30 minutes but the lack of being able to stand up meant he got bored and fell asleep. The next day it was 15 minutes, and soon I would see him actually calm when I put him in it because he knew he could sleep in that chair, even if he didn't know why.
The sinus thing could possibly helped by cutting milk out of his diet (and anything that causes mucus), and of course yours since you are breast feeding. Eat a lot of garlic (I like bolthous Farms green juice that has tasteless built in) or get garlic caps, but get them burpless, we don't want to cause the little guy more trouble.
Lastly, my friend put her son on a special diet at the advice of her dr. who went back to school to study nutrition and he advised raw goat's milk, carrot and celery juice ( you may need a juicer or a vitamix ). If you want me to ask her for his info so you can ask him yourself, please pm me and best of luck.
And to answer your last question, we all want to sleep. Even if you are not LDS your local relief society may be willing to step in and take some shifts, so please use all your resources to give yourself a break, you poor, poor thing! :o)
Ha ha, one more thing. Dr. Christopher's calcium (they have a tincture for kids) can help those cutting teeth come through faster. http://www.drchristophers.com/extracts-oils/kid-e-calc-ex...