The following are some of the reasons why you get chills after drinking alcohol: 1. When you drink alcohol, you will consume excess glycogen and produce anaerobic glycolytic pathways because of the intense caloric decomposition and consumption, which will speed up the body’s heat production, and a large amount of glycogen will be exported, so the energy consumption will be relatively high, resulting in chills. 2. 3. This will also lead to chills when low blood sugar reaction is triggered. If glucose is not replenished in time after drinking alcohol, it will lead to a transient hypoglycemic reaction, which will result in palpitations, panic and chills. In addition, after drinking alcohol, excessive accumulation of lactic acid in the body may also lead to chills.