Ok, here is the problem.
When i play a high E (24th fret on the E high E-string), i get this really anoying very high-pitched sound, like you would play a A.H. on the fret. I can't get it to sound like a normal note on the 24th fret would.
Oh yeah, the older and dirtier my strings get, the clearer that note becomes.
I don't think it has something to do with my amp settings or my technique.
And there doesnt seem to be something wrong with my guitar.
Well, if anyone knows what wrong with me guitar, or knows what i am doing wrong, let me know!