American Ninja Warrior - Things that are holding me back - #1

This came outta nowhere about 8 months ago. I was playing indoor soccer like 4 times a week and everything was fine for ages.. then I wanted to get better so I started training twice a week and my heal very quickly started to hurt a lot. I've now been to 2 podiatrists (and paid through the nose for orthotics) and will still no end in sight I'm now working with a physio. He thinks it's because of my tight calves. Which have always been crazy tight, but I've basically done no cardio for 8 months to heal this sucker so they really shouldn't be tight at all.

Damn old man calves.