In addition to the headaches, I am often slightly dizzy and exhausted. I was diagnosed with Pulmonary Fibrosis about 2 months ago and was put on Cellsept and Prednisone. I have also taken Zoloft for depression for about 10 years and dosage has been increased to 200mg per day. I am at a loss to surmise exactly what is going on with me. I have always been healthy (I am 72) but am seriously worried as to what is causing my headaches, dizziness and extreme exhaustion. Is it possible that the drugs I have been prescribed are the culprits? I have seen my doctor but got not much help. I am also seeing a Pulmonary Specialist. Thank you for any advice or direction you can give me. I am truly concerned.