Sexual arousal symptoms and conditions

Thanks to all who have participated in this site. I started Welbutrin XL about 9 months ago. Very soon after starting, I noticed many of the side effects noted here: vision problems, slight tremors, headaches, difficulty with concentration, memory loss. It did lessen my depression, so I put up w/ the side effects for about 4 months. Then I did ween myself off it. My depression and paranoia worsened, and I cried all the time. So after about 2 months I went back on it. The side effects above were back, and in addition, I developed jaw pain, difficulty w/ sexual arousal, and an overall sense of apathy. And the memory loss. concentration problems and mental fog are worse now more than ever; for lack of a better term, I feel like I'm becoming "dumb." This is starting to be a problem at work. I want to go off, but don't want the depression back. HAS ANYONE FOUND A GOOD ALTERNATIVE??? I've love your input.