momma key,

Thanks for your question.  Your husband's sugars are entirely too low.  Though your readings are low, I'm concerned they may be even lower at times when not checked.

You need to call his physician right away and advise him/her of the situation.  His medication definitely needs adjusting.  I would also feed him a bit more for the next couple of days. 

As to why would his sugars be low?  He may be following a diet lately, and with less calories, his sugar will drop.  If he is exercising more, this will also burn more calories and result in lower sugar levels.  Whatever the cause, his physician will help sort this out.

I hope this has been helpful.  Best wishes.

Martin Cane, M.D.