HP Pavilion DV4-1435DX speakers cause ears to be sensitive

Hello.

I'm sorry if I am posting in the wrong place, this is however an HP laptop in which has absolutely no problems whatsoever, only seems to bother my ears. It's an HP Pavilion bought around July 2009.

I don't wear headphones too often because I walk back and forth around my apartment. Which is why I turn on the music a bit louder than usual, and I have come to realize that when it is loud, it makes my ears kind of sensitive. As louder parts of certain songs come up (or parts with high pitched voices or instruments), I would also hear a very low-screeching-like noise which causes my ears to feel a bit sensitive and tingly. This only happens if I am directly in front of the laptop just typing a quick message to a friend or something else.

A song this would happen to me is when I have Beyonce's "Sweet Dreams" on.

I know a simple solution is to not turn it on that loud or get so close the laptop if it's loud, but I am just curious if it is only me getting this very slight screeching noise causing sensitivity to ears, or if it's the laptop's speakers that are bad, which is causing me to hear this noise.

I don't hear this noise on "average" volume or with headphones on any volume levels.

I also hear a slight ringing noise always only on my right ear, and it seems to come from the bottom right corner of the laptop if it's working or something. That happens often, but since I found out it was the laptop, I stopped thinking I was hearing things. I'll admit it's annoying, but it's not as annoying as the speaker issue.

Is this a speaker issue? Any helps would be very much appreciated