sleeping

I’ve been on this medication for about three weeks. I started the first week at 37.5 mg and the second week I went up to 75 mg. I’ve been stuck in bed all day and sleeping. Before the medication, I suffered from severe anxiety and depression so much that I had no energy to cook and clean and that continued on the medication. Suddenly, yesterday I woke up at 5am with so much energy. I cleaned my house, exercised, did self care, baked two pans of brownies and I felt good. I didn’t sleep at all for 24 hours and barely felt tired. The little moments I felt tired, I still felt energized. I didn’t fall asleep until around 8am this morning but I only slept for 2 hours. By this time I felt a bit off but I had coffee and I could manage. I took hydroxyzine to calm down and I slept again for about three hours. Is this normal to have this much energy and not sleep as much after a few weeks of bed rotting and feeling like crap? I hope this makes sense. Thanks for reading.