My bub and i had very similar issues not that long ago. Just want to let you know that it will get better! 9 weeks on bub is happy to feed and now only rarely has an upset tummy from feeding.

I used to express a little into a facewasher (to stop bub being shot in the head), did block feeding, changed position (so gravity wasn't adding to the excess flow), rubbing bub's tummy, alowing time for resting & burping. For me, i think it was a combo of things that have worked- you will work out what your bub needs too.

take care,

Kate