Braxton Hicks and spotting 33W5D

I've always read and been told Braxton Hicks are not supposed to be really painful and be concerned about any bleeding. Well I went to the ER with contractions that were painful and lasted over an hour and red spotting. It was painful Braxton Hicks and the spotting was just from extra blood flow. I was told come back when it gets to the point I can't stand it or coming 5 minutes apart and as for bleeding come in if there is more than spotting or of mucus plug comes out. So I guess everything we've always been told or read was inncorrect? 🤷‍♀️