What Prognosis Is Recommended For This EKG Test Result While Having Anxiety?

I m at 22 year old male that works out on a regular basis, not overweight, doesn t smoke cigarettes, and eats healthier than normal. I went to get a physical about 2 weeks ago. I haven t gotten a physical in a while so I wanted to get one done just for a peace of mind. I occasionally get a pain underneath my left breast and I didn t know what it was. I used to have extremely bad anxiety and I still have it now but I ve learned to cope. When I went to the doctors I told him about my weird pains and he hooked me up to an EKG just to check to be on the safe side. Apparently I have unspecified right bundle branch block he said he wasn t very concerned and scheduled me for another physical in a year. I asked him if I should go see a cardiologist and he said there wasn t really a need for it. Of course given my anxiety I ve come up with a thousand questions and concernes about it. Of course the internet isn t a very good source of information and I ve heard a thousand responses either good or bad. Should I realistically be concerned? It said on the paperwork I got sent home with after the physical that it was a normal variant but if symptoms appear like chest pain, feeling like fainting, palpations, etc. to call him back for further examination. I know shortness of breath is a symptom possibly but I ve always had shortness of breath for as long as I can remember because of anxiety and ive definitely been freaking out about this. I m just so confused. If I have this at a young age will my heart be in bad shape later in life? Was I born with this? It s just freaking me out.