It's totally normal and it will settle over the next couple of months as the valve at the top of her tummy gets stronger. The difficulty settling is probably more that she is becoming more aware of her surroundings - it's also very normal.

If she is really distressed by it then she may have reflux, which can be treated with medicine, but unless she's seriously unhappy it's not a problem.

Always pack a spare top for you and a couple of cloth nappies and a complete change of clothes for bub when you go anywhere though!

Bizarre pooh is totally normal for small babies as well. It will probably go from yellow to orange to green sometimes.... And will almost always be sloppy.
And in a couple of months she may well only pooh once a week just to be different.