Does my case qualify as medical malpractice if I had an infection that was not diagnosed and treated?

Question Details: About 10 days ago, I received an lumbar puncture. Everything went fine, however the next day my back pain was so severe that I could barely walk, so I went to the ER. The PA who was assigned to me asked me if I had a headache and asked me to rate my pain on a scale of 1-10. I told him, "My headache is about a 2 and my back pain is an 8 or 9". Blood and urine was collected and the PA ordered a medication specifically for headaches. I got nothing for the back pain. Throughout my stay, I complained numerous times about my back but I was never given relief. The thing that makes me think I may have a malpractice case on my hands is that the PA came back after a few hours and told me, "All your labs are perfectly fine". However, a day later, I checked online on the patient portal and reviewed the results from the visit and there were many abnormalities that signified an infection. About a week later, I ended up going to another hospital and was told I had a pretty bad bacterial infection. I went to my primary to follow up and she also said it was bad and that it did in fact spread because I was having severe pain in other areas. I was prescribed oral and topical antibiotics. Had the PA at the hospital informed me of my abnormal lab results, I would have avoided the spread of my bacterial skin infection and severe pain and other symptoms that affected my day-to-day activities. Do I have a malpractice case?

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