hi, i have a solid state 100w amp with a intergrated 70w speaker. and if i plug my guitar in and go to the pickup thats closest to the fredboard i can hear my amp like building up extreme noise, and my intire house shakings like theres an earthquake, its its not even loud, my volume is at 3 and master volume is at 2, and guitar volume at 10, when i make it less loud, i can barly hear my amp anymore...

is my guitar broke or something?

how can i reduce the feedback?
Does that guitar do it with other amps? If there is more that one input plug, does it do it in all ports?