I have suffered from depeession for almost 4 years and have now started getting body tremors and weakness?

Check Labs: Depression and other physical symptoms could be related to an abnormal blood value (thyroid hormone, etc) best to have your physician do a blood panel to ensure there is not a simple solution.

Possibilities: Tremors and weakness could be side effects of your anti-depressants or your immune system may be getting weaker. Have a thorough blood test including thyroid function . Consider seeing a neurologist. Get enough rest and sleep bec. It will alleviate some of your symptoms. Go follow up with a psychiatrist that you trust. Take care!