Hi Danielle and welcome!
I am so sorry to hear all that you have been througn. Shame, shame, shame on that doctor to alarm you as he did without first having definitive test results. I am appalled to hear this.
I am also sorry to hear you've been unwell, and the anxiety has returned.
...Sorry, though not surprised. Illness can be a huge trigger!
The flu especially is taxing on the body, so the pounding heart is not unusual. I have experienced this many times myself.
Even though you may be recovering, it might take a while for the anxiety cycle to slow down and stop. Once it is set in motion...it can be stubborn.
So try to be patient with yourself and the process.
How is your self help regimen currently? If you need some good ideas, please check out our Resources at the top of the main forum page here for great material to work with right away. Practicing the suggested exercises daily will make a big difference in how you feel.
Keep posting with us as well if you find it helpful. We care, understand and support is key!
Talk soon,
Scaredy Cat p