2blessed T is 10 weeks tom.
mama yes, belly ache could well be the source of the screaming - imagine lying flat on your back and being jiggled around if you had a belly ache! And they can't bring up wind on their backs v easily so again is extra uncomfy. Has she had a cold? Mucus gets stuck in the belly and results in horrid curdled sick too. Not nice, but all these reasons means it will pass.
hales always the way! Being able to boob comfort it a bigey here - can't imagine having to pace the floor etc when I get to sit and just let her at my boobs to cure fussiness. Still, you must do what's right for you all round.
I tried sock ons with dd1/2? They were rubbish! The best were some soft leather shoes mil bought back from oz but I have seen similar here.