Is shaking and twitching a symptom of anxiety?

I noticed lately I’ve been shaking and twitching uncontrollably (my legs mostly), within the past few days. I’ve been diagnosed before as having a panic disorder (and prescribed to Lexapro though I haven’t taken it) so is this just another symptom associated with anxiety? I often confuse my symptoms and blow them up into something much bigger and this causes me to get even more anxious and nervous. How do I determine when or whether or not my anxiety is bothering me? How do I counteract it? What are symptoms of anxiety I should look for?

symptoms are of anxiety
u better take the prescribed meds.
peace

Kates finger signal evolves: “My fingers twitching — I don’t usually get that.”