So i've been playing for about 5 years now, and in the past like month this has started happening. For some reason, if my guitar isn't perfectly sideways and perpendicular to the ground, my amp starts going a little crazy with feeback. Sometimes even if my guitar isnt pointed in a certain direction it will do this. Any help?
Something loose inside your guitar? Open it up.
yeah or microphonics maybe?
You're too close to the amp. Move away.