Sweetheart what I am going to say is for your benefit if you think it will help.
Buy earplugs. If you start to feel anxious with the crying around you - which I did even when I had T on me sometimes, then pop them in. They dull the real shrill feeling that makes you feel spidey YK? I found with them in I could then hum/sing to T and my anxieties dropped helping his too as well.
Will either of them take a paci? - if so I would use them as often as you need too. The paci will help with the reflux pain too, and help move the digestive process along.
So you have a buggy? Will one (other in wrap) or both settle at all in that? (My boys didn't
but worth asking?) at least then you can get out for a walk and coffee.
Ill pm you tonight once I have more time xxx