Good heavens, woman! Your husband should be checked out for narcolepsy:
http://www.emaxhealth.com/1275/narcolepsy-no-laughing-matter-woman-cataplexy
My husband has passed out twice now from laughing too hard. The one time, he was already lying on the floor on his back. He said he knew it was coming, but could not stop it. Then when he woke up, he was really disoriented for a few seconds. He was pretty tired after this last episode and went to bed, but I kept an eye on him. It is horrible worrying about him passing out from laughing. I am always watching him and it makes him really uncomfortable. Should we be really concerned? It is nice to know that there are others going through this, but I feel bad for their families too. Short of him trying not to laugh too hard, is there anything else we can do? Someone please help!
I don't know anyone with it, but of the reading I've done on the vagus nerve and what it can do, passing out due to laughter or stress or anger - those are all on the menu. I'm no doctor, but the ones that are seem to agree that the only harm comes from any injury that may occur because of a fall.
My friend has a daughter that passes out from laughing and they tell her the same thing. It is a vagal nerve response. This has been going on for over 16 years and she is otherwise perfectly healthy. I wouldn't worry too much
Frenchie