I've been having problems for a week now

By the way I went back to the doctor earlier today, they said the red may be from the food I'm eating(hotdogs and corned beef- very frequently the last days) I think I've also vomitted bile three days ago (pure water but yellowish greenish and really bitter) but maybe it was from the legumes I ate that day (cause of the acid?)

Have you had a blood test for basics?

(like white blood cell count, CRP, liver and pancreas parameters)

Without that really hard to tell where to start.

What does 'normal' right ovary mean and how is 'polycystic' left ovary defined in your case?

I had polycystic ovaries btw, other than mucking up my cycles for a while with a far too short luteal phase (impossible to keep a fertilised egg), didn't cause any pain.

Working ovaries have multiple little cysts visible in them, only when you have non working ovaries (well pre and post menstruation age), there will be nothing visible in them at all, even with pill sometimes the tiny cysts stay.

Working ovaries have about 2-5 cysts up to 3cm in them.

Mostly these findings are noted, written down and used to compare with follow up imaging.

It always depends how many and how big,

as a rule of thumb needs around 12 or more cysts in one ovary PLUS a hormone screen (male hormone androgene high) to say, if it was polycystic ovary syndrome (PCOS) or not.

If your cycles are working, it's hardly a concern unless the one ovary with 'polycystic' has huge ones causing cyst pain (mine was 9cm and no pain) or really many like 15 or more and throws your cycle into havoc and needed more testing.

(My PCOS btw got better by itself proving docs wrong, but took 2 years. Time and patience is often needed, when there is nothing malignant or blood supply issues, there is time)

If you ever have anal fissures, you will have bright fresh red blood on top of stool, looks frightening horrid,

but that's that, you need to tell doc and he/she then looks if it was due to fissures/veins or needed a look into last part of guts with a scope.

if you had severe diarrhea with puss and traces of blood (e.g. had that with salmonella), it will be like pink, red lines/threads within the slime and pus,

if you had bleedings further up in the intestine, it might not be visible at all or black. Only an immuno fecal occult blood test can confirm or exclude.

Note that many red food dyes, no matter if natural (look at watermelon or beet root, oh the joy with beet root) or artificial come out 'red' again. 

The only way to know is, to have a sample tested. Especially if you continue seeing things and do not fit to diet (which doesn't sound to good given your belly pain. I highly recommend to look up 'easy digestion diet' as long as you have pain. Drinking water to stay hydrated is key, too, especially when loosing so much)

If your symptoms continue, please go back to your doc, you could have anything, even an intestinal infection like a parasite (e.g. giardia) since you have diarrhea.

Why not a blood and stool test? If not offered, ask why not, really. Again a stool sample test can clarify and they are easily done and not that expensive.

I really would like and suggest a few more easy (stool and blood) tests before conclusions. Also for peace of mind. Peace of mind is very helpful.

All the best!!!!!!!!