Send your husband to a 24 hour boots for infracol .
Defno sounds like wind, my son suffered awfully with it , I had to re adjust expectation in terms of his re settling and it is awful ( with a husband that gets stuck in and let you sleep for part of the night )
Keeping him upright for a minimum one hour after each feed , gently rubbing back, if you lay them down and still uncomfortable rub tummy in circular motions or down the full length of back ( sometimes I used to play son on side so I could do the latter it would give him some relief. )
When old enough gripe water used to come into it.
I have heard if it’s formula that changing formula may work but you don’t want to do it too often as can also upset tummies.
If your breast feeding it’s a case of seeing if there is something your eating that’s upsetting them.
Me and husband after 3 weeks of flapping finally figured out a routine ( based on him being back at work ) I would sleep from about 8pm -10pm while he has son to give me some charge for the night , then if he could depending if he was working from home he would have him 4am - 8am .. so effectively we would both get roughly 6 hours ( sometimes I didn’t get the end bit but the first two hours were a godsend anyhow )
Sometimes I would just go down stairs stir in a chair and have him in my tummy and kinda pat and rub him while watching a film or two ... as I had already napped i was in a good place to not sleep.
My husbands logic was I was looking after our son who is extremely precious having me dangerously over tired was not acceptable as that’s when accidents happen
You husband is prob feeling a little useless but he is more useless having a paddy rather than helping out
Big hugs op your doing great and this too shall pass ( it gets so much better )