Propranalol - heart pain?

Hi! In a nutshell… had thyroiditis – was on 15mg tapazole, and 40 mg propranalol for 2 months, dosage was reduced to 20mg for about 10 days. From day 1 suffered from chest pain, breathlessness, dull ache in heart – but doc said not to worry. How can I not when I’ve never felt like that before??!! Anyway I got on with it but was never at ease. I have now been off the propranalol for 6 days and still there is a dull ache in my heart that comes and goes. On the 2nd night of my reduced dosage 2 weeks ago, I was in A&E at 11pm as I had muscle tremors, pain in my heart and numbness and tingling in my left arm. Blood test for angina was negative. Yesterday I just felt off colour and had a dull ache in my heart for the entire day, yet nothing the day before. This worries me as I’m no longer on the meds…. but should I be making an appointment with a cardiololgist? Was I weaned off too quickly? What, if anything, has anyone else experienced from stopping the use of propranalol?