I'm sure you'll come back from it. You are very level-headed and should do fine. I went through Ultram withdrawals once without knowing what was happening because I had been told it was not a narcotic - it was back in the earliest days of the drug when it first came out and even the docs believed it was non-narcotic. I had been taking the full 400mg/day and just stopped. I spent a whole weekend thrashing in bed thinking I was dying or something.
I'm really sorry you've had to endure this and I hope going back on the med has helped.
Hang in there - you'll make it just fine.