A little TMI but has this ever happened to anyone??

Kat

So I feel pretty normal today, 18 weeks. Tired, but that’s the norm. So I went to the bathroom, I’ve had to poop all morning. Tried for a bit, then when it finally came out I got super light headed and the room started spinning. I had to hold on to the band by the toilet and just breathe. It passed after a minute, but I’ve never felt like that before. Should I be a lil worried or chalk it up to weird pregnancy life?