Can baby suddenly moving a lot more be a bad thing?

Li

Today baby seems to be moving loads more than previous and my midwife told me last week that along with reduced movement, too much movement can also be a warning sign to watch for?! Can I never have a moments peace of mind 😬 she’s been quite quiet tbf until this point but I wasn’t worried as I did feel regular movements but today it’s like she’s moving all day long a lot more noticeably. I’ve had a bit of mild stomach ache/ soreness too.