Karen:
I think it's normal to feel that. It's normal for me
It's exhausting b/c I always feel forced to talk and keep everyone else happy and it's all way too overwhelming. You deserve to have a break and the house back to yourselves for some of your own "family time". (((Hugs))) and I hope your inlaws have a safe trip back home.
Take Care and don't beat yourself up. You're definitely not the only one who feels this way!