Happy to help.
The fact of the matter is that this IS likely hemorrhoidal bleeding, but, with the persistent and 'worst ever' rectal bleeding you have experienced to date this is not something to wait on.
The reason is that while it is LIKELY to be hemorrhoidal, it COULD be for other reasons... some of them are dangerous.
Diverticulosis is a likely and relatively benign cause. HERE IS A GOOD LINK ON THIS PROBLEM.
Unfortunately, cancer is also on the list. As a physician we can not afford to assume that bleeding from the rectum is due to hemorrhoids even when hemorrhoids are clearly visible. This is why colonoscopy is necessary, and why it should be done at age 50 in women, and perhaps sooner if there is a family history of colon cancer.
One final thing. The proper name for your current condition is 'rectal bleeding' or 'lower GI bleeding'. HERE IS A LINK WHICH DETAILS THIS PROBLEM.
As you can see from the list there are no shortage of causes. Pay particular attention to the 'when to see a doctor' section at the bottom.
Since your bleeding is heavier than normal and persistent, I think you should see your doctor at the earliest opportunity. If you can not get into see your doctor with 24 hours I would not hesitate to go to the ER or to an urgent care.
If you become dizzy on standing or develop other symptoms like weakness, rapid heart rate, or shallow breathing, you should call 911 as this might mean you have lost a significant amount of blood.
This kind of bleeding CAN be an emergency. As it stands based on your story you have an 'urgent' problem that could become dangerous quite quickly.
Please get yourself seen by your physician or at an ER or Urgent Care tonight if possible, tomorrow if you fell well and have read and understand the precautions listed in the Mayo Clinic article.
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