it can take a few weeks to totally dissipate from the body. the deppression thing is a toughy though. ive suffered from depression for years, and am on a mild antidepressant to try to even out the ups and downs a bit. I would recommend going straight to the doctor and talking about it. even if its only temporary, dont suffer without doing something about it. its no fun for your family, and its no fun for you. dont view it as a 'weakness' either, that's a common one.... if you had a broken arm, youd get it sorted, and depression is as real an ailment as a broken arm..... one of the best reliefs for when your down is acknowledging that it is only TEMPORARY and you WILL feel better. chin up dude