i made my own zapper as i have all the equipment needed. i have an adjustable frequency but i set it to 1kHz. i verified the output level and frequency with an oscilloscope everything is right on. just as Hulda Clark
so i used it last night and i woke up this morning with a very swollen neck. swollen enough that it looks like i have 3 chins on my left side. it seems to have reduced slightly after being up for an hour. it's just like a large bulge in the left side of my neck, which feels congested and slightly achy to the touch. also there is a feeling almost like a soar throat as well but it's very slight. does anyone know what this is? hopefully it goes down before i go to work because i'm sure people will ask or try to send me to the doctor!
i'll post again today if it changes or goes away.