Dr. Rynne...I am a combat veteran, having served in Afghanistan and Iraq. When I was in Afghanistan, I began having issues where I could not concentrate well, felt like I was in a fog, and felt like things around me were going in slow motion. Another symptom I have is that whenever I would close my eyes, I would feel what I describe as an electrical shock running through my head. When I returned home, my primary care doctor put me on Zoloft. This helped with the symptoms I was feeling, but if I miss a few dosages, the symptoms return.