For the first 6 months or so of this year, I trained using a lot of run/walk intervals - for a HM and 10K. I also did parkrun most weeks doing non-stop running. My mileage rose to around 40 klms per week - one particular longrun/walk took me almost 3.5 hours. Very early in the year I did some running in a cruiseship's gym on a treadmill - and seemed to come away with a mild case of plantar fasciitus?
About a month ago, I decided to do all of my runs non-stop according to a HR plan - most of the runs are done very slowly and easily - but parkrun and one other 45 minute run is done faster. I have built up to 3 hours per week.
BUT- for the first time in 3 years, I am feeling just a little bit of "weakness/discomfort/niggles" in my feet - sometimes in the form of "burning" under the foot ( plantar fasciitus??) , sometimes in the form of ankle "pain". It isn't enough to stop me at this time. BUT---???????? Why now??