Tired vs energized

Any other moms in their second trimester feel like one day they're on top of the world and then the next day the feel like a bear trying to hibernate lol(those are my coffee days for sure). I try to limit caffeine to days when I need a pick me up to keep going and to only one cup. I'm just wondering if any other moms feel like this, because I keep hearing the second trimester is you basically feel like the come back kid you know(normal, energized, no nausea, or less bathroom trips) but that seems to fluctuate day by day for me.