However, passing mucus in the stool, especially if it is a new symptom, should still be mentioned to a physician at the next office visit. Mucus without an underlying cause, such as one of the pre-existing conditions mentioned above, is a change in bowel habits and should be reported to a physician immediately.
By Mayo Clinic Staff. Coughing up blood can be caused by a variety of lung conditions. Coughing up blood can take different forms: The blood may be bright red or pink and frothy, or it may be mixed with mucus. Also known as hemoptysis (he-MOP-tih-sis), coughing up blood, even in small amounts, can be alarming. However, producing a little blood-tinged sputum isn't uncommon and usually isn't serious.
After 2 days of taking it, I had a foul smelling soft stool, with undigested food. Now, for 2 days I have had hard stool, that cause me to strain but not as before, so, I had a blood streak again, smaller amount of mucus but BLACK SPECKS in my stool. Today, I had black specks, and 1/8 of my stool looked black and mushy. everything was hard and compact.