I started lexapro a week ago at 5mg. On the fourth day my head and face/body felt like I was in fire. Woke up in middle of the night sweating and having crazy anxiety. Called pcp they said to stop taking. So I did. It's been 3 days and I still have this heat sensation and now my eye is twirching . Anyone else have these issues? How long does it take for 4 days of 5 mg to leave your system?