Hey!
If you'd asked me this a year
ago I would have laughed it off. Since then Eli Lilly, the makers of Cymbalta (an antidpressent) have launched a new campaign, claiming that "the balance" of such very important neurotransmitters as norepinephrine and serotonin in the brain can actually regulate the way and degree to which we experience physical aches and pains.
Their site suggests that depression can manifest itself in somatic, or physical, ways as well as in just pain feeling bad.
Specifically--and to anwer your question--neuroscientists now seem to think that you can have everything from nagging or vague aches and pains in the joints, muscles, and other areas to digestive problems, and headaches or backaches.
Oftentimes even chest pains and dizziness are now being tied to depression. For a comprehensive overview, you might to visit Eli Lilly's "
Depression hurts" site for their attempt to explain why and how. And in order to sell their medication, of course. LOL
But if there's truth to it, the claim is most definitely an interesting one and adds a whole other dimension to how we view this disease.
HTH,

John