I took 10mg of Lexapro for about 8 months, then went to 5mg for about 3 weeks, and then off, and now I'm experiencing weird constant impulses that I think are brain zaps. Is this normal with such a small dosage? I've been off the drug for about 5 days and my doctor is telling me that I shouldn't be experiencing any withdrawal symptoms from such a small dosage and that it's not related to the Lexapro. Did anyone else experience the same impulses in your arms to head?