The first time I was diagnosed with plantar fascitis was while I was playing college soccer and surprisingly, no one else on the team had developed it
It was relatively easy to clear up with a strict ice massage schedule, stretches, and a heel cup for all of my shoes.
When the plantar fasciitis came back around for the second time, I had been running half marathons for years without a bit of pain until I began to play soccer again for fun, to change up my workout. And boy did it return with a vengeance.
I ended up having to wear a cast boot on the same foot that had the plantar fascitis because of a stress injury on that heel. Even after three weeks in this boot, my plantar fascitis persisted.
However, with orthotics made for my foot inserted into my running shoe, leaving my running shoes on after long runs to continue to support my foot, and finally not wearing so many flip flops did the trick of eliminating my plantar fascitis (nobody has ever told me that flip flops worsen plantar fascitis, in just seemed in my case it did).