Noise in my engine and New Hearing Aids

[1970 CST Short Wide]

I have severe hearing loss. Couple of weeks ago I got New Aids from Miracle Ear. Went to my appointment for fitting, When done I go out to my Truck, Fire it Up and Holy Sh!t what’s that noise. Sounded like lifters swapping holes. As you may know I Just recently did a Cam and Head up grade from Trick Flow and New LS7 lifters from Michigan Motor Sports. Any way I got home and had a few people listen to this noise. 3 people listen to it All very qualified Mechanics , one even used a stethoscope , No One Could Hear the Noise. I said No Way, You guys are deafer than me. Turns out my New Aids were picking up my Roller Rockers and magnifying it in my ear like a very heavy rain storm If I turn the aids way down the noise is gone. I tried my old aids and No Noise. With old aids if my wife turned on the Vacuum it would turn my aids off
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