Yep! I had it from week 37 to week 42 (and ended up taking the induction
they offered at 42+0)
You have my sympathy, it's a fecking nightmare.
I had uncomfortable contractions that start to look regular and then taper off, getting stronger every evening. Plus, I'd have loose bowels or vomit and think "aha! here it comes!" and then nothing.
Bounced on the ball, did figure eight movements with my hips on the ball, pelvic tilts, all the moves that Spinning Babies recommended and near constant googling of "what causes prodromal labour????"
After I had the induction pills, the contractions got even stronger and more regular and I really thought it had started since they were every 3-5 minutes. Went into hospital and got sent back home at 1am. It wasn't until about 3am that the contractions got much more intense and I had my bloody show, and I could see why the midwives classed the first round of contractions as Braxton Hicks. (I mean, they weren't, they bloody hurt but the next level up was so much stronger, I think because of the induction)
In the end, I had a fast first phase of labour. When I went in the first time, I was maybe 1cm dilated and half effaced. The second time, 2 hours later, fully effaced and 1cm. I was fully dilated 4 hours later.
I think a prodromal labour makes this more likely, so gird your loins. The midwives kept expressing surprise at how fast it was progressing but I wasn't all that shocked. (Second phase was relatively long but I think that was something to do with the positions I could/couldn't get into with PGP)