A white head on your cheek is unlikely to cause a small swollen, painless lymph node behind your jaw. It's important not to jump to conclusions about HIV based on these symptoms alone. Swollen lymph nodes can be caused by various factors like infections or inflammation in the body.

If you are concerned about HIV, it’s best to get tested for an accurate diagnosis and seek guidance from healthcare professionals who can provide proper support and advice tailored to your situation. Stay informed and take care of yourself!