Can ladies describe their braxton hicks to me?

An

24 weeks on Wednesday with #2, and thinking I'm having Braxton hicks? Didn't have them with LO so not sure if that's what's going on. Short periods of time that feel 'weird' like crampy and definitely uncomfortable.

Also how often is normal? I want to say I've had 4 or 5 in the last half hour and my backs starting to hurt a little.