Hi, Thanks for your question on HCM I do understand your pain and discomfort As per your history is concerned let me clarify some doubts point wise-: 1)As you are taking drug cymbal ta so you should know what are the side effect of this medication and according to our book it is -Abdominal or stomach pain, area rash, blindness, blistering, peeling, or loosening of the skin, blurred vision, change in consciousness, chills, clay-colored stools, cold sweats, confusion, convulsions, dark urine, decreased urine output, decreased vision, difficulty swallowing, dizziness, faintness, or lightheartedness when getting up suddenly from a lying or sitting position, eye pain, fainting, fast or irregular heartbeat general tiredness or weakness, hives or welts, itching, or skin rash, hives, itching, puffiness, or swelling of the eyelids or around the eyes, face, lips, or tongue, increased thirst, joint or muscle pain, large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs, light-colored stools, loss of consciousness, red skin lesions, often with a purple center, red, irritated eyes, redness of the skin, sores, ulcers, or white spots in the mouth or on the lips, swelling of the face, ankles, or hands tearing, tightness in the chest, unpleasant breath odor, upper right stomach pain, vomiting of blood, yellow eyes and skin etc 2)Secondly black discharge may be due to many points like Gyn infections, so do a physical examination by your local doctor and he may prescribe antibiotics. 3)Please consult your primary doctor who had prescribed this medication and he will change it to other medications. Hope that helps.