DD used to have wind issues too, I found stopping every minute or so during her feed and burping her made a huge difference. With DS2 (also windy baby) I used Infacol which worked wonders. My MCHN said that although the bottle says to use it from one month of age, you can use it much earlier. I've also heard Infants Friend works really well too.

I highly recommend a paediatric chiro, I used one for all three of my babies with awesome results

I hope you find a solution, you have your hands well and truly full!