This heal pain is called planter fasciitis
. This is due to inflammation of planter fascia and I am not having any idea why your doctor wants calcium profile. I would suggest you to get a x ray
of the calcaneum
to see if there is any bony spur present in heel. You should wear soft foot wear and also avoid walking bare foot. There is role of hot water fomentation and steroid
injection. Also calf stretching exercise helps.