How much is too much period?

It seems like my period is getting gradually worse over the last 3-4 years. My cramps have gotten so painful, flow has gotten much heavier as well. I can make a nighttime pad last about 2 hours, 3 absolute max but there’s a mess. A regular size pad, I haven’t seen in years, I imagine it would last me 30min to an hour?

Just wondering if this is normal. I feel like my doctor is brushing it off, so I think it might be okay? Idk.

Otherwise I’ve had other health stuff going on, maybe unrelated. But, I’ve been nauseous, vomiting near my period. Generally fatigued and having muscle and joint pain. My doctors know about all of that too, but they tell me to take a multivitamin, which I’ve been taking for a few months to no avail.

Sorry it’s so long lol is my flow normal?