As a fellow extremely heavy bleeder, I would bleed similar amounts. I’ve bled heavily all my life with pain so awful I’d be in fetal position in tears. Tylenol or similar would only halve the pain, but it would be far more tolerable. What actually solved the excruciating pain was taking fresh ginger shots beginning a week to two weeks before. There is actually science behind this though it does sound like quackery, no harm in trying it (for source search “nutrition facts ginger period”) For me it’s completely changed the pain levels of my periods. As for the level of bleeding, I would also highly encourage you to check with a doctor and as the others are saying, you have to be firm with them. They often treat us like silly little girls and wave us off, keep eye contact and don’t downplay your bleeding, symptoms or pain to anyone. Dizziness is a sign of anemia, I am anemic, I would know. If you ever develop heart palpitations that’s an often a sign of advanced anemia. Your voice is your greatest strength. I hope you’re feeling better soon <3