Causes of neck pain include: 1  Abnormalities in the bone or joints. 2  Trauma. 3  Poor posture.  Degenerative 1  diseases. Tumors.  Muscle strain.
1 Repetitive, excessive sports, especially in the form on running, can lead to trauma that creates leg pain - E.G: shin splints and stress fractures. 2  Leg pain with an underlying medical cause may be nerve-related, musculoskeletal or vascular.  Some forms of leg pain resolve with self-help care.
Causes of leg pain include: muscle cramps, dehydration or depletion of potassium, sodium, calcium, or magnesium, injuries, inflammation, nerve damage, and other conditions. You might have used or overused a muscle there in a way they weren't used to. Stretch calves regularly throughout the day and at night.