These are the worst! I have a genuinely bad back. Last year's operation has failed, the cage that was inserted has moved. I don't think I've had a full night's sleep for over 6 months being kept awake with the pain which infiltrates every aspect of life, despite strong pain killers that I'd rather not be taking! I've finally got an appointment to discuss revision surgery with my surgeon, but not for another 6 weeks as they are so swamped. I had to write a formal complaint to the hospital and include my MP in the chain just to get that sorted.
Sometimes it would probably be easier to sack it all off and get the max benefits, but I carry on working, carry on exercising (despite the pain!) and try to live life...