What exactly was the whole thing with Lindsey …

What exactly was the whole thing with Lindsey playing a show after a spinal tap? A friend of mine mentioned it and I wasn't sure

Yes this was during the 1978 tour in late July. Lindsey had a seizure in the morning but played the show later that night in Philadelphia, after that show he went straight to the hospital and they did a bunch of test, including a spinal tap, he was then diagnosed with epilepsy. A few shows in the following days were cancelled, they first show they played again was in Landover, MD on august 7, this show was filmed.