Growing increasingly desperate. Have been suffering from excruciating lower back pain almost every night. So much so unable to sleep. Not yet received a diagnosis but seeing consultant for the first time tomorrow having had x-ray, CT, PET and lung function test. Not expecting good news. The issue is the diagnosis/tests are being overshadowed by the extreme pain. Currently GP has prescribed tramadol and a strongish NSAID but the issue is I feel absolutely fine during the day until the early hours when the pain becomes unbearable, despite the painkillers. Growing a little desperate as never experienced pain like it. What should I do? Thank you.