This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
3 years of lexapro at 20 mg daily causes physical dependence.
The restlessness and hyperactivities are the withdrawal symptoms from lexapro.
That means you should increase the dose to 10 mg daily for 2 more weeks and then try to get down to 5 mg daily.
Other possibilities like iron deficiency, thyroid gland disorder ( hypothyroidism) should be ruled out as well with serum ferritin and TSH levels.
You can try natural valerian extract as well before bedtime to help with the restlessness.
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