i was on Zoloft for 16 years after weaning my doctor changed it to Pristiq. After 2 months of side effects doctor changed it back to Zoloft. I havw been on it for 6 weeks now. At the start I felt a little better, then it was a lot worse with more anxiety and paresthesia in face and arms.How long before yje anxiety clears up? It says about 6 weeks and 8 to 12 weeks. I was wondering how long do I struggle with anxiety?Or do i need to change to something else?