Hi, I am a 37 year old female. I am good shape and stay active. For the past few weeks, I have been sluggish and my period was 18 days late. Last night I had stomach cramps, caused by gas. When I went to the bathroom, my stool was soft and a greyish brown. There was a lot of red blood mixed in and also red blood in the water. when I went to wipe, the toilet paper was covered in blood too, similar to when I have my period. I had just had my period, so I wiped around my vaginal area but it was clear, so I know the blood had come from my rectum. This morning, I am a little dizzy and my stomach feels a little crampy. I am wondering if this could be caused from stress or if it could be something of a more serious nature.