Running

I stopped playing football on a terrible old astro turf pitch. Playing on that pitch, in astro turf boots while having some flexibility and strength down the posterior chain on my right side meant playing 40mins would put me out of action for 5 days. I was crap anyway so I stopped.

I basically rested and it went. the only thing that I do that would aggravate it now is run 2-3 times a week but it's not a problem. I'd advise trying the golf ball thing as I've heard it before and.....rest. I would say look at the shoes you wear but I imagine that you have already.