Ok so i have bought the tens off ebay.....now i just need advice even personal experiences of how to get the absolute max from the tens.....i remember reading one lady said that you have to use it before labour for back ache or BH etc to help build up the endorphins quickly on demand......? so when labour starts the body knows what to do and pumps out the endorphins faster?......anyone have advice/ experience......this is my second pregnancy my first labour was completely natural, just breathing, keeping mobile......i dont know why im kinda panicked this time......? i guess it was the postnatal depression.....i just want to be sure ive covered all eventualities.