I have been having stomach pain (upper) and intense bloating for about 2 months now. my stool is dark green with lots of mucus. my ultrasound was normal, as was my blood work and stool tests. any insight? i am miserable everyday?

If you hadn't been seen by a gastroenterologist, do so. If you have, obtain a 2 nd opinion. I'm not sure that you have had appropriate testing or an accurate diagnosis. Altough I think other GI pathology has to be ruled out, my impression is that you have irritable bowel syndrome and there is effective dietary advice and treatment for it. In the meantime, look up the fodmap diet& recipes.