Stopping Wellbutrin. Withdrawal experiences.

I am currently planning on stopping my wellbutrin which i have been on for about a yearish. I have been on 450mg i have reduced it so far to 300mg. So far i don't feel to bad, i do feel nauseous though which i think may be because of the dose reduction.

What i want to know is about if anyone else went through stopping wellbutrin, what was your experience. How bad did withdrawal get? What effects were there, and how long did it take, and how long did the withdrawal last.

I am not really sure how long i should wait between dose lowering, Thankfully i think it should be easier as i take 150xl versions.