Good that she's fine and thriving
OK....all human beings have stomachs that make noises, including growls. You tend to be aware of it more in small babies as there is not much insulating fat over their tums and you have your ear closer to their tums. But if you put your ear right next to anyone's stomach you'll soon hear all sorts of weird sounds.
Wriggling - normal. Screwing face up - normal. Neither of these are signs of discomfort in a baby. If she was in real distress she would either i) scream in pain or ii) 'switch off' and be difficult to rouse.
It is fine and good to let her fall asleep at the breast. We have some sort of daft idea that babies need 'winding' come what may before they are allowed to sleep. This is cultural, not physiological. Some babies may need this, but it's not a given for all babies.
So you can see, it doesn't really sound as if this is trapped wind, but more likely the normal wrigglings and writhings and face pullings of a new baby with little control over her limbs and facial muscles
I think it's prob a good idea to go to the baby cafe, as I'm sure they will offer support and hopefully you will see your baby is ok and not windy, or no more than most.
Mostly, when babies really do seem distressed, they just need holding and feeding and soothing. It's got nothing to do with air in the stomach
Of course maybe she is windy - but the evidence for this is not in your post as everything you say is just what new babies are like