In regards to my Menstrual Cramps – An intense stabbing pain woke me up. Really bad cramps. I applied the Infratonic DEEP signal and got a little increased pain for about 3 minutes, then got occasional cramps, maybe 1 per minutes. After that, the pain was gone. Just to make sure, I slept with the Infratonic all night. I felt good the entire next day until 8 pm, when cramping started to return. I waited until 10:30 to be sure the pain had really come back, which it had, and again applied the Deep signal. This time I got a slightly increased pain, not like before. After 5 minutes all the pain was gone. I left in on for 30 minutes total. The relief lasted all night and until noon the next day, but even then, when it returned it was nothing more than minor 30 second cramps.