Strange Sound

[Notatechie]

Hey All,

I found this forum with other people experiencing the same problem but with no answers and it's happening to me too, any advice? It's in the comment section, below the article about high frequency sound.

Quote:

"NotATechyGirl says:
December 5, 2009 at 11:16 pm
Okay, I have a question and by the looks of all these posts, everyone on here, except myself, knows the answer. I AM technically challenged so please be basic with your answers as I will try to understand without many more questions. Here is my situation and why I came to this site searching for answers.

I have a horrible neighbor and we’ve had our words on many occasions over loud music. I think she has discovered a LOW BUDGET way to get even with me and I need your help in figuring out what she is doing.

She leaves her house in 30 minute intervals (she does not have a real job), so I assume her devise must be either reset every 30 minutes or maybe she can’t stand experiencing it herself. I DO NOT live in an apartment but in a neighborhood where the WOOD FRAME homes are in VERY close proximity to each other (less than 50 feet). Moments before she drives away, my ears start ringing which reminds me of how I feel the day after going to a really loud concert the night before. After a few minutes, my ears will pop with pressure as if I am in an airplane or I can feel/hear a pulsating pressure that does not diminish with ear plugs. Although this may sound really off base, I seem to feel real gittery as if my nervous system is being effected and an increase in my heartrate. If it goes on long enough, I can also feel a tingling feeling throughout my body and a cold chill sensation up my spine. All these sensations intensify almost as if the volume is being increased the longer it goes.

It must be something that is being pointed or directed to my house in some fashion since I physically DO NOT hear any audible sound even if I walk outdoors to try and determine what I am feeling.
It is like the sound/pressure is a sound that is only audible to my inner ear and can’t be heard the traditional way.
Please, please help me. What is the devise or creation she is using? BTW, she is no technical genius herself yet she does have a boyfriend that is the handyman type, so I guess he could build something on this order.
Any suggestions would be greatly appreciated."

https://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/ - Here is the original link

 

[mindless1]

^ If I had to guess, this is psychological and you are suffering from a combination of stress and high blood pressure. The latter can be measured scientifically and compared at different states of the symptoms.

If you are introducing additional stresses to yourself such as excessive caffeine, alcohol, or other drugs, you might want to factor that into your blood pressure comparison data too.

 

[Notatechie]

Could it be something simple like a form of pest control like mouses?

 

[mindless1]

^ Doubtful, that typically uses higher frequency than a human (and even some animals) can hear, and would be unlikely to penetrate building walls enough to notice, let alone be agitated by. I suppose you could get a pet mouse and see if it freaks out when the event is suspected to be happening, but IMO not worth a try unless you want a pet mouse anyway.

 

[Steltek]

Maybe she is using some type of alarm system that uses cheap ultrasonic motion sensors.

High frequency sound can have all kinds of adverse health effects. There are a lot of former US diplomats in Cuba that claim to attest to that.

Back when I was a kid, my father and his brothers had a construction company that I worked for at times. One of the places we regularly took concrete jobs was absolutely lousy with high frequency sound. I hated working there because even using ear protection it made me sick as a dog by end of day every time.

Otherwise, if you haven't checked your blood pressure recently, please do so. As others have pointed out, a lot of your symptoms could also be caused by hypertension. They can also be exacerbated by side effects of certain types of prescription medications.