I would say answer the question as asked. You said the answer would be No to the question(s) as presented. No requirement to volunteer information. I am sure the question related to your "other event" will be asked at some point but it's not a medical issue. There will be plenty of employment questions in the future that will capture your event.
Here is some info that might help- look for the paragraph on traffic violations. If still in doubt talk to a lawyer who is familiar with the FAA.
https://www.aopa.org/asf/publication...fm?article=620
Not to be judgmental but, "SAY NO TO DRUGS"!