What do you mean by sore heels?
Is it both feet?
Look up plantar fascitis and tell me if that is your complaint.
I too had foot pain and kind of still do but as severe, I know it is due to a specific shoe I wear that causes the pain. If I change up the shoe the pain goes away.
You need to get a brace something like this
I am using this as example but you can read the comments and see what is at your price level.
Bascially keep your foot immobile during the night so the muscle can heal.
Yeah it’s defiantly consistent with plantar fasciitis. Both feet were hurting.I switched up my shoes and haven’t been doing any high impact workouts on my feet. How long did it take you to recover ?