Hi mama, I hear you, pregnancy symptoms can really throw us off guard, especially when we thought things were improving. That episode you described with the fast heartbeat, white vision, and vomiting sounds like it needs proper checking out though, so I'm really glad you reached out to your gynae. Please make sure to follow up with her soon if you haven't heard back, or go to A&E now if it happens again or you're still feeling unwell. These things can sometimes be something simple, but they're worth getting looked at properly rather than waiting. Take care of yourself, and don't feel helpless, you're doing the right thing by flagging it to your doctor.