What diagnosis for excessive thirst and tingling in hands and feet?

Diabetes: It sounds like you may have a type of diabetes called diabetes insipidus. Check with your primary care doctor.

Consider getting: Checked out for diabetes. Excessive thirst and peripheral neuropathy can be symptoms of that.

Possible: That might be diabetes. Other symptoms associated with some diabetics are increased urination, increased hunger, and others. See a doctor and get checked out.