We were similar, my second still isn't talking, and he was a fairly easy baby, but number two had troubles with wind too!

I'll tell you what I did to sort out our wind problems a bit. I used Brauer's colic relief, avoided cabbage and any other food that was known to make babies windy, and slept bub on his tummy for day sleeps (eventually this became all sleeps, even night, but that's against SIDS recommendations, so I'll let you decide for yourself whether this is for you or not). Sleeping bub on his tummy put a bit of pressure on his tummy and that helped with pain relief I think. Also, I would make sure bub had entirely drained one breast before switching to the next - the hindmilk is less sugary and thicker, so less likely to give bub wind. There's a threads on colicy/windy babies if you want to go find out more.
ETA: Oh yeah, and as Mel said, as time goes on, and their gut matures, the wind issue tends to resolve itself.

As for the 2 year old, does he still nap? I put #1 down for a nap/quiet time every day. And fed him dinner earlier in the day (and then a snack at dinnertime), which really improved his mood. Plus, if yours likes food, have a small stash of snacks on hand to give him for when you're busy with bub. Mine could be pacified with an arrowroot biscuit and a book on the couch. Sometimes with two, you need to buy your time. Plus some special time with him when you can, even if you read a book together while you feed bub.

And I also agree with Cai, if you can get out sometimes, even to a family member's or friends, who doesn't mind if you're an hour late, go for it.