I don't go near NG anymore. Even at these levels - far too volatile. It's worse than silver. I played it for a short time, but was caught on the wrong side on an overnight move. It can make for a good daytrade - but it isn't worth the risk. I've been trading oil since mid-March and have done well.
One would think that since NG is not exposed to externals such as the USD, fighting in the ME, or European defaults, that it would be a good comm to trade. But, just as you think that you've got it nailed - WHAM! Too many wtf moments.