#1
is there supposed to be constant thunderstorm feedback at all times because i think i need to return mine.
#2
there is supposed to be absolutely NO feedback from the pedal.

return it promptly, with original packaging.
#3
Yeah, mine has never done that. You need to go get a new one asap!
Telecaster - SG - Jaguar
Princeton Reverb, Extra Reverb
P-Bass - Mustang Bass
Apogee Duet 2 - Ableton Suite