When did you feel the weight of your baby?!

I'm 6 months today and for the first time ever I felt the weight of my baby. I'm at work and I've been sitting for awhile now, I got up to pee so I walked to the bathroom fine, after I used the restroom and I stood straight up I felt the weight of the baby being pulled down by gravity...I know he can't weigh more than 2 pounds but I swear to you it felt like 100 pounds being pushed down from inside me. I lost balance and had to literally hold myself back LOL. If I'm sitting I literally can NOT bend down and pick something up off the floor anymore. I feel him chilling in my stomach. My lord this has GOT to be one big baby. 

It's almost like a feeling I can't describe. I feel like someone tied weights to my belly 😂 

When did you start to feel your babies weight?!