As I stated earlier, go get the biopsy so you know what is going on.

If you have problems with anxiety especially always being concerned you have oral cancer then you may want to seek out some other help as well. A therapist may be able to ease these fears for you.

It could be any number of things happening including acid reflux, the yeast infection could be thrush. You could have a couple things going on but until you get checked you wont know. I know its scary and hard not to worry but the stress is not helping you to think clearly. If you must 'go there', limit the time to consider this subject then 'change the channel' and think of positive things. Stay busy with tasks which take concentration like reading a detailed book or doing s project. Do positive things so you are not sitting around worrying 'what if'. At this point worrying will not do one good thing for you, it only makes you feel bad.

Hang in there, it also takes about a week for the biopsy results. Get in there and find out whats wrong then make a plan to fix it.

Good luck!!!