Iv had Plantar fasciitis… very sore and nasty thing.
You could try to ease your pain:
-Freezing a water bottle and roll it back and forward on the sole of your foot.
-Get some Footreviver orthotic insoles
-Stand on the end of a step with the ball of your foot and stretch your heels down you might need to wait a while to do this .
-Best thing is to book a private sports type Physio and get them to laser it.

Also there is a good thread about getting rid of heel and foot pain over on Utterz… https://utterz.com/forums/topic/how-to-get-rid-of-my-foot-pain-do-insoles-actually-work/