Really slow at feeding and getting very windy, used to be easy, what's going on?

[MoosMa]

DD2 is nearly 12 weeks old and has always been very greedy and a good quick feeder; until a few days ago she was downing 7ozs in less than 20 mins. All of a sudden she's started taking 3 or 4 ozs then stopping for ages before fiiiiiinally finishing the last bit. She seems to be getting very windy and being unable to shift it.

To get the wind out I put her against my shoulder or sit her on my knee and jiggle her, any other tips for winding or preventing it in the first place?

is it possible that you need to go up to the next teat size? Could she be so full of wind cause she is wanting to feed faster? Of could she have some reflux? Reflux burps/sick smell very acidy

She does have reflux but it's never affected her feeding before, she has Gaviscon so she doesn't cry and puke after feeds. She's been using 3 hole teats for a while, maybe I'll try one a bit faster for the next feed and see what happens.

That seemed to help, she still got windy but the whole thing only took 20 minutes

I can be a bit of a divvy sometimes!