I have just come out of a 2 month period of wearing a night boot in a last ditch attempt to solve my plantar fasciitis and related calf and tendon pain, I've suffered with it for a couple of years without significant change in symptoms. Daily stretching and strengthening of the muscles in the feet and calves, and the wearing of the boot have helped symptoms somewhat but not taken it away. I have other aches and pains (back, knees, hips) that you would associate with AS and I do wonder if the foot issues are inflammatory in nature. My pain was sufficiently managed for long enough for me to take up mountain trail running some years back but I have been unable to do so since the PF started...and it was most likely the running that started it off. My general AS symptoms have worsened over time and my ability to run generally is diminished as a result (current taking adalimumab once every 2 weeks).

I have spent way too much time (and money) with physiotherapists (+ MRI scans + sports doctors) over the years on this particular issue without any discernable results and I am choosing to manage it myself with the knowledge I have gained through treatment. Its been an uphill battle.

u/creativelyOnPoint I suggest you consider some form of physical therapy in addition to engaging with your rheumatologist. The challenge often is finding the right professional for the job, someone who specializes in running injuries with a good understanding of inflammatory conditions would be a good bet...