"I’m getting to the point where I am really struggling"

On attending my appointment last week I requested further investigation into my back and joint problem. It’s been 8 years since I suffered the accident and it’s getting to the point I struggle to get out of bed. It affects me at work. I get numbness in my legs and lose feeling. I keep getting prescribed painkillers but I don’t actually know what the problem is. It’s getting progressively worse and I’m getting to the point where I am really struggling.

I told the nurse this who replied with an mri scan won’t show anything. You will probably never find out the cause of you back pain as there probably isn’t anything there and it’s something in your mind. I ended up breaking down and saying I was worried what if I end up losing my mobility and end up in a wheelchair as I keep getting loss of feeling in my legs and sometimes in my arms and pins and needles. The nurse just laughed and said that won’t happen. By this point I was crying because o couldn’t hold it back any longer and the nurse just replied with. Are you on anti depressants? I think you’d benefit from some. To which I said no I am not I’m upset because I am in pain every single day and I’m not getting any help or finding out what on earth the actual problem is. To which the nurse said they would refer me back to the doctor in charge of pain management to request to have injected (or iv I can’t remember) pain relief. Which isn’t what I want at all, I just want to find out what is wrong with me. In my mid 20's I should not be struggling to this point now! I have always had really good experiences with the nhs but this staff member had really upset me.