Hello, welcome to healthcare magic. There are a number of different reasons that you can see blood when you stool. The important things here are your age and the fact that the blood was bright red and seen on wiping. Also important to know would be whether you have any family history of disease in the colon because some illnesses can be inherited. Another factor would be whether you have any history of problems with you bowel and if there is any history of vomiting, if the stool was hard or you had to strain, if you had a change in the number of times that you go to the toilet to stool.
If it was difficult to stool and you had to strain or the stool was hard then blood may be seen because staining would mildly injure the anus. For this you would have to try getting your stool to become softer by using a increased amount of fibre ( fruits , vegetable, whole wheat bread or biscuits, oats, barley legumes) or a stool softener
such as ducolax.
Bright red blood can also be seen in haemorrhoids. These are enlarged veins in the anal region that may just be seen inside the anus or , in some people, come outside the anus. If they come out they may go back in on their own or be pushed back in , in some persons they may remain on the outside but that is associated with pain. Haemorrhoids occur where there is increased pressure which can occur in constipation
when you have to push so hard to stool so there is alot of pressure in the anus, alos can occur in people with alot of coughing or people lift heavy objects or are overweight
. With haemorrhoids the blood is BRIGHT RED and is seen on wiping, they can feel uncomforable . They can be treated by sitz baths, using ice to decrease the swelling, increase intake of fibre to reduce constipation, using wet wipes to avoid further hurting the anus, petroleum jelly. In some cases surgery is required.
Blood can also be seen with diarhoea particularly if it is from a bacteria such as salmonella
or shigella. Diarhoea can be associated with cramping pain in the abdomen and the need to go to the toilet often. This is also called enteritis.
People who have inflammation in their colon can also experience blood in the stool but in this case you would have diarhoea, pain in the abdomen, fever, loss of appetite, weight loss
and anemia, the blood would also likely to be mixed up with the stool.
Colonic cancer is not likely at your age unless you have a very strong family history.
It is most likely blood due to straining or hard stool, haemorrhoids or enteritis.
The stomach being noisy would just be you bowel sounds which occur during peristalsis
which is where muscular contractions push the contents of the stomach through the intestines. Bloating would occur in gastritis
or reflux or GERD which may respond to antiacids, using milk, avoiding laying flat and acid blockers.