The problem appears to be that hard of thinking remainers like youself spout rubbish without checking the facts. Go on, be a devil, do a little research.
NHS England: £394 million more a week? - Full Fact
Spending on NHS England will have increased by £20.5 billion by 2023/24 compared to 2018/19. That doesn’t cover all health spending though, and of the money won’t come from a a “Brexit dividend”.
fullfact.org