Hi, thanks for writing to HCM.
Your condition is called rectal bleeding/hematochezia
. This bleeding can happen if there is any bleeding in the intestinal tract. Since you say the color is bright, it is possible there is internal bleeding
towards the lower intestinal tract i.e rectum
or anus. But, you should also be concerned if there is possible cancerous cells. With regards to diet, I am glad you have noticed that sweets do not work well with you. It may be because your Gastro intestinal tract is sensitive towards sugars and hence may be the resultant bleeding. Since you know it well, avoid sweets and foods that irritate the digestive tract such as fatty foods, heavy pastas, etc.
Please consult a doctor as soon as possible.