hey there , firstly welcome!!!
I'm afraid no the NTI device was no use to me!
But is it certainly different in every case of course!
It depends however are you a migraine sufferer, or more earaches?
I suffer primarily for earaches, i had a displaced disk they found a year after wearing the NTI so it wasnt helping me at all, however now i am in the upper and lower repositioning splints which have apparently fixed my displacement but i still get earaches caused by muscle spasm .. ARGH im so confused! but yeah what symptoms do you have?
Have you had any x rays??
Hope to hear from you soon! Hang in there, we are here for you champ!