Braxton-Hicks already?

Alyssa

So for the past few days I’ve been having what I think are Braxton-Hicks. My whole stomach gets really tight for a few seconds and then goes away. Happens on and off for a few minutes then stops. And does this through out the day. Nothing else happens only that, no bleeding, no leaking of fluid, nothing. Just curious if this is normal so soon or not, 22+5 with twins, FTM.