This seems to be Plantar fasicitis.
Try analgesics and contrast bath for 6 weeks before resorting to other treatment modalities.
Contrast bath consists of immersing both your feet in a bowl of water each, with one containig warm and the other cold
water. Keep it there for 5 min and exchange the feet. Repeat this 10 times and the cycle 4 times every day and you should be better by the end of 6 weeks.
Wear MCR (microcellular chappals).
If it does't subside by six weeks time, local steroid
injection can be tried.