Hi Michael,
Welcome to OCF and I see you are already getting great advice from our members.
My first thought when I started to read your first post regarding the white stripe under the tongue was leukoplakia. As you can see by my signature this is what I had and it eventually turned to cancer. Your later post says they "originally believed" it to be leukoplakia?
I can see from your post that your head is spinning right now and you should know that there is no such thing as a stupid question here.
It is only a little while to wait now for the result of the needle biopsy if you get them on Monday 12th.
I am a little unclear if you had a more thorough biopsy when you say you had 2 �cores� taken? You will no doubt have a lot more questions when you get the result so ask away as there are many here to help you.