I too am 29, high anxiety (not all the time, but it crept up on me in December) and quit on January 2nd. I have been driving emergency room nurses and my wife crazy with my calls to the hospital with a new symptom. It feels like I'm not the same person I was in November. I was put on Zoloft a couple of weeks ago which seemed to make it worse. Recently, I have started to feel better. Maybe it's the Zoloft and maybe it's just time. I feel like I was dealing with high anxiety from caffeine, tobacco, and the changing of the seasons (seasonal affective disorder). I have been posting my symptoms on here and seeing if others are going through or have gone through the same thing just to get some relief. I feel like we are going through very similar quits so feel free to reach out.