Braxton Hicks?

This is my second pregnancy and eith my first I never experienced Braxton Hicks I actually was in real labor 3cm 100% effaced having contractions and didn’t even know it. When I got pregnant with her I was 140 had her I was 155 but after I lost a bunch of weight went down to 115, currently 122 and almost 26 weeks pregnant. I’m not sure if what I’m feeling is Braxton Hicks or just might be because I’m smaller this time around? My stomach has been feeling pretty tight and almost feels like I’m “working” harder to breath and catch my breath. Baby is still moving not as much today but he’s still going strong so I know he’s ok. But would you consider those being Braxton Hicks since I’m still so early?