I been a heavy dank smoker for the past 13yr. Smoking about 1/8 the lasted three days at a time. I wake up refresh but get hit with fatigue out of nowhere.i haven't smoked for about 3 weeks, no craving just fatigue. My question is how long will this go on? My diet is super healthy so that's out the resolution and I rather not take any drugs if possible. I allow been a weed head and nothing else.(and they say weed is a gateway drug, big finger to that)