This sounds exactly like both of my kiddos. Try using a Playtex Drop-in with the latex nipple. It lets you squish the air out, so it helps with the burping and inhaling gas/air. I found with the "continuous flow" ones that they never stopped so the baby couldn't catch his breath. Latex is softer than silicone so it is easier to latch onto, but your baby may not mind; mine did.
Try having him sleep in a swing or carseat. These are above the 30 degree angle you need to keep her at so the gerd isn't so bad. You may need to put him on Zantac or Prevacid. I also used Maloox to calm the tummy and help with the gas as well. I put it in a 1cc syringe (No needle) and let it drip into the side of the mouth. Usually 1 or 2 ccs were enough, but you might not need that much, my guy was over 10 lbs when he was born.
If it is GERD you may want to look into a Sweet Peace Soother from Graco. It takes the carseat for when the baby falls asleep in the car, and it swings either side to side or front to back. Each baby is different.
I wish you luck and patience and sleep. If you need more ideas, PM me.
ETA: As for spit up, I had one who did, one who didn't.