
For Several Days, I Become Suddenly Thirsty . My Mouth

Do a MRI and test for diabetes.
Detailed Answer:
Hello dear, welcome to Ask a doctor service.
I read your query and here is my advice.
I think the thirst and the forgetfulness and lack of concentration you are experiencing may be caused by diabetes.
Constant elevated glucose levels cause changes in small vessels and changes in brain structure and function .
Another possibility is the atherosclerosis of small vessels of brain, fat accumulation in blood vessels walls cause narrowing of lumen and impairment in perfusion of brain.
You may need to check the blood sugar levels, fasting, post prandial and HbA1c.
Also an MRI of brain may be needed to evaluate the situation.
Hope I have answered the question.
Let me know if I can assist you further.

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