I just went to the bathroom to poo, when i went to flush i saw a lot of stringy white noodle looking things in the bowl. they weren't moving. what is ?

I would have to be: concerned that this is a some kind of parasite, worm, or even lining of the large intestine. I would contact my doctor's office immediately, explain what you've seen (perhaps take a phone picture and send). I predict they will want you to come in right away and bring this stool, if possible, or submit a stool sample. Other tests may be recommended. Pursue now to get accurate diagnosis. Stay well:)