Gosh I really empathise with you, I am also so scared when it comes to doctors, I put up with symptons way too long, and they turned out to be nothing too serious and with medication I am doing fine, please don't worry too much, actually going and finding out what it is will be a huge relief for you really, and at least you will know what you are dealing with, we here can only go by our own experiences, so it could really be anything, and not much at all, go get the expert advice and let your mind rest easy,TAKE CARE and I hope everything goes ok for you, thinking of you and wishing you good results and no more worries or pain .