Adik, I'm a bit concerned hearing about the blood, please take baby to the doctor or Klinik Kesihatan today to check, okay? Blood in vomit or stools needs proper checking, even if it seems like a small amount. Since your baby has lactose intolerance, the vomiting could be related, but the blood spotting really needs a professional eye, could be a few different things, and doctor needs to rule out anything serious. Don't worry too much, but best not to wait on this one, ya. Sending you strength!