by Fizbin » May 13th, 2015, 7:52 pm
Check how a regular music file sounds at the volume you have chosen. If that is too loud, the subliminal will probably be too loud.
If the volume is OK, the headaches are quite possibly the subconscious resisting (not necessarily rejecting) the file with a last rally before giving in. Eventually, however, the subconscious will have little choice but to accept it. The file doesn't get tired, the mind does.