I was experience cramps in my left foot, EVERY morning, at about 3:00am. Once it started, it wouldn't stop, even walking around & stretching wouldn't help. The minute I laid down again, the cramping started. Saw on YouTube a video about vinegar. I started doing 1 tablespoon of Bragg organic vinegar, in 4 oz of water & lemon, 3 times per day. I have not had a cramp since I started the vinegar, about 2 weeks ago. If you're at the stage where you will try anything, do this, but keep up your other OTC routines. Magnesium or mag oil is vital too. I usually take a swig of pickle juice at lunch too.