Yea, i get extreme tiredness too, no matter what take to combat it, caffeine ir ECA, i stlll can fall asleep when its hitting, hence why i make sure to be actively in a cardio state when that occurs. But still the moment i sit down i fall asleep.More around 3iu, but yeah 3-4 hours post subq injection my energy level just crashes. I'm wondering if it's an individual response. Some people don't seem to get the lethargy, or they say it goes away in time. I haven't experienced this. I get the lethargy every time around the 3 to 4 hour mark