I have been taking Zoloft for almost 4 weeks. I started taking 12.5 mg for almost 2 weeks, then started taking 25 mg once a day. I started with a skin rash 3 days ago, and today I ve been feeling light headed, dizzy, and uncomfortable feeling in my stomach. I ve also been feeling very tired this past week. Do you think I should stop the Zoloft, go back to 12.5, what is your advice?