Bypass surgery treats symptoms of coronary heart disease. That happens when a waxy substance called plaque builds up inside the arteries in your heart and blocks blood and oxygen from reaching it. You may feel things like:
85% of the approximate 8.7m population of Bulgaria speak the official language, Bulgarian. 2.5% speak Macedonian, considered in Bulgaria as a dialect of Bulgarian and not as a separate language. Other minority languages include Romani, Turkish, spoken by 9% of the population, and the related languages of Gagauz, Tatar, and Albanian.
DO NOT ask if they speak Russian in Bulgaria (they don't, they speak Bulgarian which is a Slavic language) and DO NOT confuse Bulgaria with Bolivia. If she invites you to her place, always.. remember... always take your shoes off at the door even if she tells you not to.