I've been on Zoloft for three weeks now. I'm taking 50mg per day....

I've been on Zoloft for three weeks now. I'm taking 50mg per day. Mainly sexual side effects. It takes much effort to become erect and I've had one orgasm in two weeks and it was a struggle and not enjoyable. In the beginning, I had headaches, fogginess, tininitus, and overactive sexually for a week which disturbed me. I was unable to concentrate at work. I also sweated off and on for a couple of days and then felt feverish with chills. After a week, all of those side effects went away and now it is just the sexual side effects. I am supposed to see the doctor next week. The positive note is that Zoloft has done wonders for me already. I feel great. I sleep through the night, wake up in the mornings ready for the day... and my mind usually races through several thoughts at once. I'm able to concentrate now.