PF or tendonitis?

If anyones got time for a long winded explanation, i cant see my doctor for a couple weeks and im hoping i can identify what this is a lot sooner. Bought blundstone steel toes a few months ago as i wanted a pair of boots that would actually last a few years, could barely get my feet in them when i bought them but since then theyve stretched out a little too much and theyve been pretty uncomfortable. Im a chargehand in a mill which basically means im doing a ton of speed walking between workstations and ive been getting soreness in them before, mostly heel pain but some on the sole of the back of the foot and sometimes on the heel itself. Yesterday i really did a number on it and by the end of the day i could hardly put weight on it(majority of pain on bottom of the foot/heel). Waking up today the bottom of the foot is fine but im basically crippled with pain in the actual achilles, cant flex my foot at all(raising toes towards me)without extreme pain. My understanding is the soreness underneath the foot points to PF but im also genuinely concerned ive seriously damaged the tendon in my actual heel in part because ive had issues with that foot/calf before. I wear barefoot runners in the gym/running and for the most part theyve been incredible for my feet/posture but my second summer using them i overdid it on my first run after a low cardio winter and i had similar pain in my heel that time. Also fractured this ankle in hockey as a kid and in retrospect idk if i did the physio justice at that age so there could be a major muscle imbalance making the issue the tendon…basically still doing my own research but very unsure whether its PF or soft tissue injury so hoping somebody will have some insight, thanks in advance!