I've had bleeding when i wipe and toilet after a bm. i feel discomfort,burn and itch after bm, shortness of breath, weight loss. should i worry?

See your doctor: Your symptoms warrant a proper evaluation. Rectal bleeding is always a concern, but not always cancer. Worry is something that goes along with the unknown. The only answer to your concerns are to see your doctor and be evaluated appropriately.

Maybe.: It mostly sounds like hemorrhoid but shortness of breath is not associated, please get evaluated