My doctor switched me from Zoloft (sertraline) (50 mg) to prozac (10 mg) and I'm feeling the site effects of it. Is this normal? Without weaning from Zoloft (sertraline)?

Not surprising. While both Zoloft (sertraline) and Prozac are similar (SSRIs), patients often respond differently to the two medicines. So feeling some side effects from the change is not surprising. Typically our brains adjust to the change within 7-10 days without serious problems. However, if side effects persist or significantly disrupt your daily activities, contact your doctor and discuss your concerns.