Almost everyone is aware of the emotional symptoms of depression — feelings of sadness, anxiety, pessimism, and hopelessness. But many people do not realize that depression can also cause physical symptoms. According to Psychology Today, depression leaves its marks or "footprints" on the body in the form of everything from headaches to heart disease. These problems often, but not always, disappear when the emotional problem is resolved.
Physical problems that can be caused by depression include:

• Insomnia. In addition to difficulty sleeping at night, depression may manifest as excessive sleeping or waking early.

• Irritability and restlessness.

• Fatigue and reduced energy.

• Headaches. If you already had headaches, depression may make them worse, says WebMD.

• Persistent aches and pains.

• Digestive problems. Depression can cause nausea, diarrhea, or constipation.

• Chest pains. Although you must rule out heart problems, chest pain can be a symptom of depression.

• Loss of libido.

• Weight gain or weight loss. Depression can cause some people to eat more and others to lose their appetites.

If you think you’re depressed, or if you have a loved one that’s depressed, seek professional help. According to the U.S. Department of Health and Human Services, 6 percent of people who suffer from depression, and 15 percent of those who suffer from major depression, eventually commit suicide.