I thought i had to pay for this so i closed out, sorry about that. I am diagnosed with depression for over 10 years and take Zoloft for it. However, the past 2-3 months i have been extremely tired and non-motivated. However, I WANT to be.. i sit and want to get up but the fatigue is so overwhelming that I can't. What type of infections could be the cause of this? Could this be CFS? I just had a physical and all the blood work came back fine (with the exception of High Cholesterol) - would that make a difference, i'm not overweight, i'm 5'3 and 134lbs. What would be the right most direct questions to ask my PCP about this?