This pain happens in the front or inside of the lower leg in the shin bone. Shin splints are the most common after changing your activity, for example running long distance or increasing the frequency of your runs too quickly. If you have flat feet, you have to be careful as you’ll develop this quickly.
Treatment: Lots of rest, proper stretching before running
An inflammation of Achilles tendon, a large tendon that attaches the calf muscle at the back of the heel. This causes stiffness in the are of the tendon, especially in the morning with activity. Usually causes this is a repetitive stress on the tendon, like adding too much distance to your running routine, tight calf muscles.
Treatment: Rest, icing the area, and doing some calf stretches
This is also called muscle strain, which causes a small tear in your muscle, often caused by overstretching a stiff muscle. You may feel popping sensation when a muscle tears. This affects hamstrings, quads, calf and groin.
Treatment: Lots of rest, icing the area, and elevate the affected part
This is an accidental tearing of ligaments that surrounds the ankle, sometimes caused by improper stretching. Often happens when you roll or twist your foot inward.