Thank you for the two videos, I also found the flat foot episode which is exactly what I have wrong with my feet. So I at least have a plan of attack.
It’s just knowing what to hit, I headed into the gym today to do some mobility & just over an hour worth of work I could of done another hour easily. Feet,calves,quads & my hamstrings are extremely short. Then obviously hips/low back are bad from these issues, even my knees hurt lately.
Fixing my arch/feet needs to top the list