Mama, I understand you're worried, but if your belly is hardening and you're feeling heart palpitations together, please see a doctor or go to the nearest clinic as soon as you can, okay? These things together need to be checked by a professional, especially if you're pregnant. I know a few of us mums have felt weird things during pregnancy, pero hindi kami dapat mag-guess with things like this. Better safe than sorry, tama? Let me know how you get on, sending love.