Hello Ryleigh, and welcome to a really helpful cool site!
I read that you are in a lot of pain. I am a male, but I know the rectal cramping you speak of...I also have loud, very loud stomach noises and lower stomach-pelvic area cramping too! I have found this IBS,or rather it found me several months ago and after several visits to the Doctor,then after seeing a Gastroenterologist and had a few "procedures", She concurred that this is what I may have. The dreaded IBS!
Trying Less Stress in on's life,and experimenting with a food Diet is very challenging indeed. Some say More Fiber(soluble) then it's safe to eat insoluble followed soluber,then once the tummy gets normalized,you can feel good again. There a lot of "Trigger foods" that kick in the cramping and Loud stomach gurgling noises,and I have recently found out on Christmas Eve, that the temptation of all those sweet yum yum cookies that everyone brings was more than I can handle..I had some,and boy was I sorry the next few days! I also remember eating a Seven -layer dip my sister had brought (she makes at every occasion) and maybe the acidity of the tomatoes was also to much to bear. So I have learned to stay away from Apples, applesauce,apple and grape juice, grapes, Tomatoes,sauces,salsas,fried fatty foods,Pizza, sugar laden sweets,and even dairy. I drink lactose-free Soy with protein in the morning, rice cakes in the afternoon with lean meat (chicken,turkey) and at night,chicken broth .....boring, I know, but safe for now. Every individual is different as to Diet and there is confusion to me on how some can eat White fresh bread and others have to eat Whole Wheat bread, White or Brown Rice, and whole grains supposed to be good, I was eating Quick oatmeal in the morning for a few days until i started getting cramps..I don't believe it! This is supposed to be good for you. I thought.
My other sister gave me a book called 'How Full is your Bucket" by Tom Rath, about the power of positive thinking and getting rid of Stress / Anxiety in one's life which this IBS condition apparently has a lot to do with. and Stress I was talking to someone before the Holidays that this book helped her out of the IBS condition she had suffered for many years. Good luck and I hope you feel better!