You have alot of very valid fears in addition to your husband's health today. I'm sure those concerns are compounding the sense of imminent danger. Don't feel gulty about it...it all makes sense. on the other hand remember the wisdom in the Serenity Prayer. "Serenity to accept the things you can not change" "Courage to change the things you can" and the hard part "Wisdom to know the difference".
We are all on your team and sending caring thoughts, prayers and best wishes your way. Hang in there. You are a strong woman. Hugs. DDD