Aiyo, that sounds scary lah, especially at 33 weeks, I can understand why you're worried. A few of my mum friends juga went through similar scares with spotting after cervical checks, and yes, the brownish discharge is usually just old blood from the examination itself, tapi since you've been through dehydration, vomiting, and abdominal pain all at once, I'd honestly feel more comfortable if you follow up with your own gynae (bukan just KK) to get a second opinion and make sure baby is okay, better safe than sorry at this stage, kan. Keep track of any new bleeding, cramping, or if baby's movements change, and go back to A&E straightaway if anything feels different. Take care of yourself and rest properly, okay?