I'm 31 years old male. I would drink regularly for past 8 years, starting from 90 ml of whiskey daily to 360 ml of whiskey with water for past 4 years daily. In the month of March I contacted Malaria, for which I took medication and didn't drink Alcohol for 4 days, after that whenever I drink a small amount of whiskey or beer, my eyes gets red, heart experiences palpitation and body aches and I feel weak in few minutes. Why does it happens? Kindly help.