Good luck with the help, Virginia. I understand the cause and effect thing relating to palpitations. I did have similar symptoms as yours. Easy to see in retrospect. Now I have proof that the FEAR was caused by my heart stopping and not the other way 'round. Yes, I am very, very lucky.
I was actually treated well -- and with respect but it was frustrating. I could tell "anxiety attack" was in people's minds. My blood pressure was doing strange things too.
My heart over-compensating as it turned out.
A mobile EKG monitor over a period of time is used sometimes to sort out heart beat irregularities. Tricky thing dealing with the system.
I do understand and again -- good luck. Wishing you luck in finding a doctor with the skills to help.
Joy