Regarding your dizziness and recurrent nausea, google this:
Meniere's Synxrome
I think you will find some answers to your questions, and will be relieved to find that the problem is not with your heart.
Hello.
Dr. McWilliams quit working on MedHelp some years ago. The Heart Rhythm Expert Forum is still active, but there is a $20 fee. The doctor answering questions there is very clever (I asked him a question two days ago, and I got a qualified answer within 45 minutes).
This is a patient community, but I will try to answer your question (though you are free to post in the Expert Forum anytime to get an answer from the doctor).
RBBB is a normal variant in the absence of heart disease. About 10% of us are born with RBBB or incomplete RBBB.
RBBB will not cause any symptoms. Some people develop RBBB after having a heart attack or so, but RBBB itself is never dangerous. The problem with your ear / tinnitus is not by any chance related to RBBB.