I did not have specific "triggers". As an alcoholic I always found an excuse to drink, no matter what was going on around me. I drank because I was happy, or I drank if I was sad. I drank when I was healthy, or sick. I drank if it was too hot or to cold. Pretty much if I wasn't sleeping or at work I was drinking, all day - every day.
Learning to face life on it's own terms was one of the hardest things about getting sober.