u/Intrepid_Ad8135

So I just started doing HIIT in the last few months. I can feel that I’m getting stronger and my endurance is getting better. But I do notice that after some workouts, I crash and need a nap a few hours later which impacts work or I am really really sleepy at night earlier than my bedtime, which can make it hard to fulfill some family obligations. Does anyone else have this experience? Is this normal? What can I do about it? I am eating relatively healthy and I don’t count calories, but I’m definitely sure I’m not under feeding.