I am terrified right now. My husband is in a very depressed state. Also suffering from memory loss, but not excessive from I can see. We have been consulting several doctors, has been to one neurologist and has had an MRI. No signs of tumors or stroke, just regular signs of aging, mild atrophy, mild bright spots. Also suffering from depression. Have been to doctor for depression as he has had many tearful episodes. Recently he has lost the ability to sign his own name. He was taking Lipitor but has been off it since Sept 11, 2013 and had the shingles in January of 2012. This all started to happen after the shingles episode. Some days I think it is getting better and then other things crop up. Recently he has had days where he is unable to sign his own name. I am so nervous and agitated and feeling very defeated right now. Have another appointment with another neurologist soon and I'm scared to death. Is losing the ability to sign one's name a sign of depression? Please help.