Do any mummies feel sudden pain in the chest?

Aiyo yes yes, you are not alone lah! My friend actually went through the same thing after her second baby, heart pounding, sharp chest pain for a few seconds, very scary feeling. She told me her gynae explained it could be postpartum anxiety, because the body goes through so many hormonal changes after birth and sometimes it shows up as physical symptoms like that. Someone in my mum WhatsApp group also mentioned a mummy named Jamie who shared her story about postpartum anxiety, she said the warning signs were exactly like what you described, that tight chest and racing heart feeling, and she got better after seeking help. But another auntie in our group did remind us that chest pain and palpitations after delivery can sometimes be a heart-related thing too, not just anxiety, so cannot simply assume lah. Definitely don't wait too long, please go see your doctor or a specialist soon to rule out anything serious, better to be safe than sorry, especially when you have a little one depending on you!