Has anyone else experienced bad cramps and pains when sitting up? It feels like my baby's crushing up to my ribs and lungs and it's agonising! Causing really bad reflux and my food takes hours to digest... does anyone have any tips on how to relieve this pain (gaviscon doesn't work for the reflux) ?

Edit- His heads very low down to so I'm guessing I've got a really long baby and my bumps very low.