I've recently had a shift in my periods.

I used to struggle with super heavy periods during my 1st and 2nd day of period. However, just the last 2 periods have shifted and my heavy days are now the 3rd and 4th day and it became quite impossible for me to even handle the period flow because it's getting super super heavy! I feel weak and I'm bleeding a lot.

Any advise? Is anyone struggling from same?