Tightening pains when I need on the toilet

Georgia • Mammy to 2 fur babies ❤️ 1st pregnancy with a baby boy 💙

Probably tmi but... Whenever I need a wee or a poo, I get the worst tightening pains possible. It kind of stops me in my tracks, like il try walk to the toilet and it physically stops me. Is this braxton hicks? I know you can get them from a full bladder! I’m 35, almost 36 weeks