Physical Mobility: Can't regain my ability to run post-TBI

I suffered TBI in 2012 when I was ran over by a car. I’ve had a shunt, valve and catheter installed when I had a brain seizure in 2016. In 2018 I had a large section of my skull replaced. I’m 90% recovered and am looking for the final 10%. My back and pelvis were broken when I was ran over. I was in a wheelchair for 3 years. ALL my mobility has returned with the exception of my ability to run. Several years ago I underwent acupuncture in an attempt to find another “ path” that my brain could use to signal my nerves in my legs. I understood the idea but alas it didn’t work. My search continues.