Hi there, i started zoloft five days ago at 25mg and my doc told me to possibly expect more anxiety , sleep issues, headaches the first week while I wa s adjusting. The first four days I had side effects described above and the 4th day was so intense (a lot of dizziness, some anxiety, headach,sleep issues ) that by the end of the day I had almost convinced myself to get off it. The fifth day however was significantly better and the side effects were much less and I feel like I may be able to give it some time to see if it works.give it another few days and if symptoms don't ease up I'd check In with your doc. Good luck!