Having Permutation Of Head Noise. Diagnosed With Dementia, Alzheimers And Had Surgery For Blocked Intestine. What Dose It Indicate?

I have been experiencing different permutations of head noise since 2011. These sounds began quite suddenly, very frightening. I had informed my Dr. of varying symptoms. I had emergency surgery. for a "totally Blocked Intestine. I believe I am dealing with some hostile family eliment, as I have been told that I have dementia, and alzheimers. I relocated from New York to North Carolina. I had been in good health ,self motivated and active. the head noise started in 2011, after eating my supper. The symptom was frightening. whenever I leave my home it appears that some one comes in and sprays the house..I do live alone by choise. I have no knowledge of the possible Street drugs that may be contaminating my environment. I do need some intervention, by some caring persom.