Hello and welcome!
I am sorry to hear about
your health anxiety challenges...I have been exactly where you are, and it is so difficult.
With time and continued use of your CBT skills (and other therapy/self help tools)...and reaching out for support, I know that you will gain some very good recovery as I have.
Do have a look at the top of the main forum page here as Hibee mentioned. There are links specifically for Health Anxiety and PVC's/Palpitations that will surely be helpful to you.
You have received great input already from Hibee and Zoeyz, so keep posting! We understand, care and support is key.
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"Worrying does not empty tomorrow of its troubles...it empties today of its strength."
Corrie Ten Boom
Panic Syndrome recovery due to CBT