u/Accurate-Value-5429

Hi all,

So i have been running for a while now.

Over the past year i have been experiencing pain on my left lower back, sometimes sharp, sometimes dull.

Been to physio 3 times, not helped, they said my glutes are strong, my leg unstable, my feet flat causing the pain and then my hip.

Nothing had helped and i don't know what to do.

Any advice?

Below is a video my wife took of me running, any ideas wjat could be causing this?