Hi John,
I don't have anxiety/depression from experiencing everything you have...it just runs in the family. I was fine until I was about 21, and that is when I was told that anything can trigger the chemical imbalance and then once you are imbalanced, it's best to stay on the meds. I have been on Zoloft for the past 4 years and it's been great for me. I got off of it for 6 months, was fine...thinking I was strightened out, but then pulled and all-nighter in college, had caffeine pills and it triggered the anxiety attack...I was anxious until I got back on the Zoloft, so I don't think I will stop again.
These SSRIs are all trial and error for everyone. Your own chemical makeup will determine how well it works for you/side effects, that is why there are so many different brands. Wellbutrin and Lexapro didn't work for me, Celexa made me feel crazy, but Zoloft was the thing I was looking for. My mom is also very anxious and she has found relief with Cymbalta...it is very similar to Zoloft but gets in your system fast, where Zoloft may take 4-6 weeks to feel back to normal. Don't give up...you'll either start feeling better on your own, as this experience gets farther and farther behind you, or you may have to be on meds, as many people need that extra help. Don't settle for one though, you should be able to find something that the side effects don't drive you nuts on! Just remember that for some, like Zoloft, you won't feel completely normal for that first month or so.
Activity is also the best thing for the mind...go on walks, this has helped me too! Good luck to you, try to stay positive, you will get through this too!
Molly :)