thanks for choosing health care magic.
i can understand the problems you are going through..
well as you have yourself mentioned that your diet is not balanced with hardly any fruits and vegetables..
my first and fore most suggestion would be to correct your diet with more fruits vegetables and fluids so to say a high fibre diet.
try to reduce your anxiety
as it itself is a cause for heartburn
and bowel irregularities.
well you have mentioned about blood with stools that is usually because of constipation
but there can be many other reasons so i think you should consult a doctor may be you need a sigmoidoscopy
.could be because of hemorrhoids..
take high fibre diet, reduce stress u will be feeling much better the sooner you do it.