My OCD and anxiety is usually very situational, but lately I've been trying to be more aware of "where I feel it in my body" per the recommendation of several therapists over the years.

I was just leaving the gym, where I had a great time, but on my drive home I was hit with a wave of anxiety - irrational and not able to be traced to anything, just the looming feeling that I was forgetting something or neglecting to worry about something important. I've been somewhat able to talk myself down from it, but I'm wondering if it was caused by low blood sugar, elevated heart rate, physical stress, overcaffeination, or some combination of all of these? I'm curious, what are your physical/environmental triggers for anxiety?