I barely felt mine. The only way I knew I was having braxton hicks was the first time I was hooked up to an NST machine, THEN I knew what to look for because I didn't feel them.
your tummy gets hard & mine feel like It kind of takes my breath away & they are a little painful nothing like omgosh I'm dying but you know it still kinda hurts but its just cause I'm on my fourth kid so says my doctor