Back to my original question, I'm very scared about nose breathing and swallowing issues, worried I have cancer, I have no money to see doc. What to do?

Doubt cancer. These symptoms are not typical for cancer in the back of the nose, throat, etc, and such cancers are extremely rare at your age. But if you remain worried, you'll have to see a doctor. Look for a community clinic -- there probably are some in the Dallas/Ft. Worth area. Such a clinic also may be able to help find health insurance, e.g. through the Affordable Care Act (Obamacare) -- even in Texas!