internal tremors from lexapro?

I have been on lexapro 20 mg for a few years now, i have recently been having really bad anxiety etc. so my dr told me to start taking 40mg , since starting the 40 mg I have had these constant internal tremors mostly in my arms and chest but sometimes in my legs. this is making my anxiety worse. I stopped the 40mg i was taking for a week and went back to 20mg a day but have still had these tremors for a week since stopping the 40 mg. These tremors scare me and make my anxiety worse, I went to the er and my blood test was fine, heart was fine. Is the lexapro causing this and how long till these feelings go away? Help thanks!

[MrGreen]

Maybe it is time for a change of medication. Maybe the lexapro has just stopped working for you. That can happen with various types of medication. I would discuss this with my doctor. See what he has to say about it. Probably end up putting you on a new form of medication.