I hope everything is ok and you've been seen the hospital recommends seeing you if you're soaking a pad an hour which clearly you would be if you weren't wearing tampons.
you need to go to the hospital ASAP. even if there's nothing wrong and you're just having a wacky period, that much bleeding can quickly become life-threatening (some women DO have periods that cause enough blood loss to be dangerous)....and if nothing else, they'll need to check your iron levels.
How soon can you go in to be seen? I would recommend not waiting, just because the longer you bleed the more of a toll it takes on your body.
not super plus tampon, the're super tampons.