Hi Kim,
The cya club is the (excuse my french) cover your ass club. I got AA from an epidural injection. The doctor was rushing, she was having a hard ti.e and she forced the needle into my spinal cord. I felt it, screamed and immediately had a terrible headache spasms I had never had before. The doctor told me to wait and see if I felt the same the next day and if I did, she would give me a blood patch. My headache went away the next day and I only had the spasms sometimes so I thought I was okay. Four months later, the new pains were intensifying so my pain doc sent me for an mri. The radiologist very clearly saw AA. My pain doc tried to convince me it was just a coincidence.