Quite frustrating

Hello,so i lastly experienced really frustrating problem. As a long time alcoholic ive drank straight vodka mamy Times, but for last month swallowing vodka or in fact any alcohol is just almost impossible , ive never had hangover or anything in that matter but any small sip of alcohol makes me puke, not 8 hours after, even before actually swallowing. Even after force swallowing Im experiencing really bad stomach aches Any ideas how to fix me? Need alcohol asap