I have contacted my doctor but have any other mamas out there experience this?

As of lastnight I've been having alot of cramping. Like the gas diarrhea pain. But no gas or using thr bathroom just the pain. They were coming and going all night and day. Some times it actually was painful. Tonight I'm having them still, nd if they don't happen then I get braxton hicks. Sometimes they are 20 min apart sometimes they are an hour apart. But they last from 20 seconds to 60 seconds. Its really uncomfortable. I am 22 weeks. Any advice or share your story? Thanks!