### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I attended a maxillofacial consultation requested by my dentist . I attended and following examining my mouth I was told I have unusual pigmentation in my gums and the inside of my cheeks. The doc took blood tests and explained I would have a biopsy completed too to rule anything nasty out. However, he said the presentation was quite unusual and explained I have what appears as large freckles (one has a white centre and is surrounded in a deep purple blueish colour the other just bluish purple). Each area is the size of a fifty pence peace on each cheek and at least a 2mm line across the top gum of my top 4 teeth . I have not noticed any unusual pain, but occasionally my cheeks are sore as if I have accidently bit down on them when I am sleeping. I take pain medication as I have M.E. and Fibromyalgia and I also use a sleep ap machine at night. Sometimes my gums flare up which cause a deep gnawing discomfort which is eases with my existing pain relief for other symptoms of the ME and Fibro. I am just needing to know what the worse scenario is and if I have anything to worry about. The doctor did say it is nothing to worry about just very unusual but I felt he was going home to read up on it further. He took blood tests and said he will book a biopsy to be done. I am a smoker and drink a lot of strong coffee. Those are my two bad habits and I have not drank alcohol for a number of years given my medical problems it does not agree with me. I am concerned about mouth cancer given how quickly this has presented since my last dental check around 6 months ago. My dentist has changed but this was never mentioned prior to attending my new dentist.

### output:

Hias per the information provided by you and the history of Fibromyalgia the sore mouth is the symptom of this only. Fibromyalgia patients usually feel these symptoms as heightened pain in response to tactile pressure, tingling of the skin and unusual pigmentation patterns on skin and mucus membranes. You need not worry about the mouth cancer, as per the appearance of the oral pigmentation doesn't suggest oral cancer in your case, but you must stop smoking as this will predispose you to oral cancer for sure.quitting smoking will also help to return your normal sleeping pattern. Take care