Hey Cheesey, this is just a thought, but it is possible that you had a panic attack. It sounds very much like one with the exception of the fatigue. Could have possibly been a combination of the stress of work and the increase in garlic. I only say that since you were having a busy day and were about to get on a train. Sometimes when you are in crowded places when there is a lot of CO2, it can kick in an anxiety attack.