Hi, I’ve just got back from the dentist and I’m a bit freaked out. They did an X-ray and found one of my teeth (molar right at the back)has a huge dark shadow. There’s no sign of infection, no swelling and no pain etc. the dentist has referred me to the hospital for a “second opinion” and said I should get an appointment quite quickly. Am I right to be as freaked out as I am about this? My mind has gone straight to some horrific jaw bone cancer.