Mental fog and complete inability to concentrate

Mental fog and complete inability to concentrate--mental symptoms of my life now. Then there is the physical problems--my legs have no sensation except when I go to walk, and then its pain. Woke up this morning with stretch mark not only in my legs but also running down from tip of my thumb to my wrist (from all the excess edema in my body). I have been trying to drag myself to do anything all day long, but am completely unable. Reminded of why I have spent the last three years watching tv--only thing I am able to do in this state. Trying so hard to force myself to do something but the body is too sick