I have been training for a few 1/2 marathons and my long runs have been around 8-10 miles the last few weeks. In the last week I noticed my calves getting really tight under the poppliteal fossa. I thought it was weird but did not think much of it cause the tightness was so high up.
Also a month or so ago, I stopped wearing my custom orthotic at was using a gel insert from the store cause the whole bottom of my feet would be sore after a shift.
I guess all the above has lead to another flair up of PF...I had really tight calves (along the whole calf) the last few days and woke up today with a bit of the heal pain
I guess I will be using my orthotics as much as possible from now on. I hope that will curtail it. I don't want to miss my 1/2 marathon next month!