Feeling heavy today.

So today I tried hanging out with my family at my grandmothers house. We weren't doing much, my mom and I went to a panaderia and to drop her car off somewhere but omg. I felt extremely heavy! It was so uncomfortable getting up, walking around, and also sitting down that I actually went home early. So crazy because I don't feel like I'm all that big. Does anyone else feel like this at 6 months? Lol.