<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am a 42 year old female who was diagnosed 15 months ago with pernicious anaemiamegaloblastic anaemia. I was having horrendous heart palpitations and breathlessness. An ECG showed i have RBBB. Does the PA exacerbate the heart condition, or could there be an underlying heart disease quite separate to the anaemia?  <response>: Hi, dear. I have gone through your question. I can understand your concern. You have pernicious megaloblastic anemia. For that you should take injectable vitamin B12 therapy. Your heart disease is totally separate conditions for that consult your physician and take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. I 