Conversation: The conversation between human and AI assistant.
[|Human|] my freind had monofasic cancer in neck before 2 yrs and was operated and is fine from 2 months she has a hard lump on head size didnt increase and yesturday in evening she felt drousy and was complete bank while walking on road for 30 seconds just wanted to know does it have anything to do with cancer as she was said it occurs in 2 yrs
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. Black out may occur due to anemia, hypoglycemia, hypotension, hypertension.  Chances of tumor causing blackout are very rare.  So first you should go for basic investigation for anemia, diabetes and hypertension.  Then you should take treatment according to cause. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.