strained my back on monday... wasnt too bad on mon/tues in a bit of pain now though.. dont think its nothing serious but what do you suggest is the best way to heal it? light exercises, walks etc, or just pure rest? i've suspended all exercise for the time being, which is a bit of a bummer coz i'm due to start at catterick soon and wanted to cram as much in before then as i can! also.. are them electro-pads that you stick on ya back worth gettin? any help appreciated.