SPD and polyhydramnios

35+6 with PH and SPD. The last 24h have been torture l am in absolute agony and can't cope with the pain anymore. Had a scan yesterday where they confirmed that yes my fluid was still increasing and baby was also estimated 6lbs11... head is down and since she pushed on my belly to do the scan l have been in so much pain. She said good that l see the consultant next week... My pelvis is ready to crack (I was already on crutches/belt/physio), l am struggling to breath, l have strong constant period and lower back pain and l can barely walk or even sleep as in too much pain. I had a c section first time, l don't see my consultant until next week to discuss my options. I tried hot water bottle, hot shower, paracetamol, rest nothing helps l am crying like a baby as soon as l have to get up... any advice, relief or similar experience? Not sure l can cope like that until l get seen again next week but feel like going to triage won't help as not sure what they could do to help.