Hi there I am a 25 year old male. I aim to keep healthy and eat well however lately have been noticing that I am frequently mildly short of breath, even when at rest. It can be at various points during the day and for no real apparent reason and frequently causes me to yawn, feel tired or have limited concentration. Sometimes I feel so tired and almost wheezy that my voice sounds different... almost as if its not getting all the air it usually does behind it. When I was around 14 my parents often told me they thought I may have asthma, however this was never diagnosed and I mostly just ignored it as it wasn t too noticeable to me. 8 Years ago I went for a routine check up and the Doctor mentioned that I had a heart murmur. Again it was never fully looked at as never really noticed it (except for the odd flutter now and again which I considered normal). Now recently i ve been noticing that I m short of breath more frequently, daily even. So I went to the hospital for an unrelated matter last week and whilst was there thought id mention all the above. The shortness of breath has seemed to have affected my confidence lately. They gave me a pre-operative ECG and noticed that it had an incidental RBBB on the charts. Therefore, my question is whether there a chance that these symptoms could all be connected and what might that reason by? Could the murmur, RBBB and mild shortness of breath all be completely separate or possibly something more serious? I know you cant diagnose as such, however i m just looking for thoughts whilst I await an appointment with the Doctor. For info, whilst in hospital my resting pulse rate was 69 (although i ve noticed that can be about 75 at rest on other occasions), and my BP was 129 over 89 at rest which I think is normal. Many thanks