Had Epidural, Hepatitis Treatment And Lumba Punch. Have Back Pain, MRI Showed Degeneration Of Vertebra And Bulged Disc

Question : Hi iv had 3 children in the past and had epidurals , was ok after those . But 5 years ago I had Hep C treatment and was hospitalised with complications . I had to have a lumba punch , which took 7 attemps . The last one they took me into theartre as the pain in my right side of my back and leg was so bad nerve like but very very bad . They sedated me the next thing I was out of theatre and they still had been unable to get the sample .... My husband visited me and took a picture of my back , I had 21 visable puncher marks and bad bruising . Since this my back pain has got so bad , im in pain 24/7 sitting , standing ,walking very short distances because of pain . I cant lay in bed on my sides and on my back . Sleep depravation is horrid . Iv had a MRI scan and the Dr said I have degeneration of vertabra and bulging disc's . But it's the pain I had after my lumba punches which is still there !! Could it be nerve damage from the lumba punches or am I paranoid ? :)
If it is nerve damage what do I do next ?And could it be down to negligence ?