I have dark green feces (chunks of red and poss. Specks of blood), trouble excreting soft stool, painless swollen area near anus, and cramps. Answers?

Swollen anus w/cramp. May be proctitis: inflammation of the lower rectal area due to inflammatory bowel disease ,gluten sensitivity, sexually transmitted diseases, trauma. Keep stool soft w/drinking fluids 2.5-3.5 liters /day water /gatorade/ juices( not pure water, f/u w doc /urgent care http://www.mayoclinic.org/diseases-conditions/proctitis/basics/definition/con-20027855.