Physical symptoms of anxiety

I've had on and off health anxiety since I was 18. This time due to some health issue my anxiety triggered and spiraled such that since last 6 days I'm experiencing physical symptoms of anxiety like internal shaking and external shaking with dizziness. It's happened for the first time and so I'm more worried that is it really anxiety? Is this how anxiety symptoms work? What can i do to deal with this? So I want to share this will fellow people who are experiencing something similar and hope they soon come on the other side.