I think we post all over the place anyway so no worries about hijacking.
Probably there is nothing we can say that will calm things down for you. Your Doc would not have said he doubts that its anything to worry about if he thought otherwise. Its no bad thing that he decided on biopsy to back up what he thinks.Remember he sees oral stuff every working day so he knows what he is talking about
Also waiting a couple of weeks for your appt would seem to indicate he doesnt see it as urgent,of course could just be a very busy dept. I was told one to two weeks but they phoned me to come back same day.
Best advice I can give you is dont jump ahead of yourself take things a step at a time. Its very early days 2weeks to biopsy then further two weeks for results of that,so you would be torturing yourself for a month.
Anything you want to ask just ask away we are here to share our experiences,much safer than Doc Google. xx