I had an ultrasound on my heel last week. It showed quite clearly that I have plantar fascitis.
I have the option of a steroid injection on Wed and not sure whether to have it or not.
Today I did 15 miles in the GO33 route north from Lochearnhead. The heel was a bit sore in the last 3 miles and sore now.
On the plus side that's 40+ miles in a week for the 2nd week.