Hi Dr. Brown, I'm sorry to bother you but I'm also having some concerns about the appearance of my tongue. I recently had unprotected oral sex and I'm worried that the appearance of my tongue might be because of what I had experienced sexually. I am attaching a picture of my tongue. It is white, and I am using a tongue scraper to try and scrape off the materials on my tongue. Is this oral thrush? What about the swollen taste bud in the back of my tongue. That has actually been there for quite some time now (almost 1 year). Please help... does this mean I have HIV? I have only given and received oral sex.