| You must be imagining that you feel great at 13-18 as it generally will make you feel more tired. Don't understand it. If it makes you happy to do this then that's great but, like everyone else has said, the consequences will be complications later on. Takes away the fear of a hypo in the meantime I guess!
Also, without insulin your sugars will keep going up if you exercise or run about. Are you still taking your night time insulin? Guess that's what is keeping it a bit lower than 30mmol + !!
Whatever rocks your boat I guess! Most of us are battling to keep under 10mmol ! I hate injecting as much as anyone. Sometimes skip insulin with breakfast but that's about it really.
Good luck with the hba1c test ! My Dr's go nuts if it's above 7.5mmol average. | 
