It sounds like you have a bad infection! Blood in stool can be a few things, and i would certainly try to speak to a doctor! Because if you are bleeding for any reason, you will have to be careful not to cause any further irritation with meds or herbs you might buy yourself. Otherwise you could also have hookworms. I am not a fan of standard medicines, but i am not an expert so i could not say anything for sure regarding treatment! If you are really stuck you can try a stool test with a private lab where they can detect occult blood and some labs even give advice based on the results. If i were you i would see an alternative therapist (chinese, ayurvedic what worked for me) as well, at the same time, it can be good to support yourself in many ways.
I am sure it is hard with a full time job but health costs time and you need to spend it!