Will I ever feel normal again?

I'm currently 24weeks with twins first pregnancy. I'm always exhausted, work is a huge struggle, my back hurts to stand and sit. It hurts to lay down but it feels alright when I sleep. I have had to wear a maternity support belt since week 8. It's uncomfortable if I'm sitting too long but then if I try to even walk around the house without it the weight it just too much. Pre-Prego I was 158 lbs now I'm 180 lbs. someone tell me once they are out of me I will feel what normal is again. I'm starting to lose all hope I'll ever know how that feels again.