Ay, ganyan talaga sometimes sis, false labor or Braxton Hicks can be super intense, lalo na sa second pregnancy kasi alam na ng body mo what contractions feel like! A few of us moms went through the same thing where tiyan namin sobrang sakit, then nawala lang bigla, tapos nag-deliver pa kami weeks after. Since you're at 37 weeks na at nag-ease up na ang pain, best to follow up with your OB next check-up para sure lang lahat okay, pero most likely yan lang practice contractions, basta if it comes back worse or may discharge/spotting, go back agad ha!