Braxton or Real???

Jeanette
Hey Pregant Peeps!!
So all day yesterday my belly kept tightening and was really hard... Would only stop when I was laying down. It was so uncomfortable and happening every hour.... At times I couldn't breath so uncomfortable.... I have felt the baby move like crazy so I know baby is good and more active than ever... I'm just a little paranoid..... Anyone else go through this? 20w4d currently