Headache on the left side may cause generalized aching or pain in a specific place, such as behind the left eye. It may feel throbbing, sharp, or piercing. Most people will experience a headache ...

If you have chest pain on the left side, your first thought may be that you’re having a heart attack. While chest pain can be a symptom of heart problems, that’s not always the case.

The most common cause of low back pain on the left side is a muscle strain. Other causes of lower left back pain include a kidney infection, herniated disc, and pregnancy. To treat lower left back ...