I think we're all on the same page here that if there is something troublesome going on, getting looked at is the thing to do! I know from experience, and from talking to lots and lots of twin mamas, that it can be a very normal thing to have a lot of BH contractions towards the end of the pregnancy. I had a ton of them from 28 weeks or so on, and regularly had more than a few in an hour, usually when I was doing too much.
So, my approach was sort of a least-to-most intrusive one. If I had enough contractions to worry me, first, I'd do the drink a tall glass of water and lie on the left side trick. Then, if they were still somewhat troubling, I might sip a glass of diluted wine or take a warm bath to see if it calmed them. If, at any point in this process, I realized they slowed down or stopped completely when I did my tricks, I knew they were really just a reaction from my body for my doing more than I should be. I would then know it was time to make sure I was drinking enough water and getting enough rest. If they were still coming enough to worry me after using up my bag of tricks, I figured it warranted a call to the midwife!
If you have a provider you trust, it can't ever hurt to call and ask a question, right? But yes, it can be very normal to have a LOT of BH contractions towards the end without it meaning preterm labor. And yes, if you are worried, a call to the provider can always help you figure out what is going on if you're getting mixed signals.
Wife of one and mom of five, including my HBAC twins!