I've just been told I have mouth cancer, should I be concerned?

Cautious. Mouth cancer is usually squamous cell carcinoma. This type of cancer is frequently associated with tobacco, excess alcohol or hpv. Depending on the grade of cancer, stage of the tumor, and where it is located, along with the specific type, will determine what treatments are offered (surgery, radiation). This information should be provided to you to help you understand your treatment options.
Yes! Cancer of the mouth is a serious issue. Consult with your doctor asap.
Yes, but. Yes, but with early detection and treatment, most cases can be cured.