I have been on Lexapro since January but last Sunday I ran out of them and I hadn't had any since. Yesterday I started having heart palpitations, really bad anxiety, depression and nauseoua. I called and got a new perscription and took it but afterwards I threw up twice all acid but the thing is I only ate a small meal long before I started to even get heart palpitations.. and only had water. Now it's the next day and I have a slight fever, nauseoua, and my ears are red and warm to the touch but my heart is okay today... Is this because of not having my Lexapro?