when is the glowing stage?

Noleen • Married summer 2015
I'm 19 weeks and for the first trimester I was constantly tired. By about week 13 I started to feel much better but I am now feeling really tired again and everything is repeating on me. Might I also add I have had the hiccups morning, noon and night since I was 6 weeks... I thought the second trimester you were supposed to feel good? 😕
Might I add I am not complaining, merely asking a question 🙂