Some things changed at work where i was spread really thin i started to get more migraines and felt overwelmed doc gave lorazapam passed out why?

Lorazepam: Can be highly sedating for some people.

High dose?: What dose of Lorazepam did you get. It is a minor tranquilizer and your fatigue , you may have just fallen asleep. Anyway, instead of taking a tranquilizer, you need to discuss this with your boss and let the boss that you need help. Your "passing out" was a wake up call for both of you.