I have had heel pain since my vaccination, but can't honestly say that it was a result of my vaccination because I have a history of foot pain related to plantar fasciitis and tendon inflammation.
Last spring I got my Covid10 shots, and i began walking outside when the pain returned, I was advised to always wear good shoes with arch support, never go bare footed, and to treat it as plantar fasciitis. I added an over the counter gel heel cushion for comfort. In June and August, I went hiking and I was surprised that if I wore my hiking boots that I had no pain! But can't /won't wear those everyday.
In July, my podiatrist suggested that I try a Recovery Sandal by HOKA . They provided arch support that I need, and cushioning for my heel. I don't usually name specific brands, but they worked for me and I could walk with out any pain at all while my heel recovered.