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commonly refers to lipoma. I believe what your doctor diagnosed is lipoma.
Lipoma is a benign tumour. Malignant transformation
is a rare occurrence here. So I do not think what you are currently experiencing is not related to this tumor.
Chronic daily headaches are associated with tension and migraine. One can also have dizziness
, nausea and reduced consciousness with it. Perhaps what you have is primarily just be a headache (migraine or tension) and not a tumour. I suggest you to consult a neurologist
for detailed evaluation.
Presuming it was only a lipoma, I can assure that you do not have a brain tumor
Hope this helps.
Wish you good health