It is NOT, generally speaking, normal for you to be woken at night by your guy shaking the bed violently, turning blue, and peeing on the sheets. If he does this, and hasn't done it before, he needs medical attention.
You also should not allow this to go on for several nights in a row, and then call his mother to see if she can help you wash all the bedsheets, and (when she asks you why), let her be the one to make the CORRECT decision that he should go to ER.
It is also not cool that you sent him in by himself, so you could stay home and catch up on washing sheets. Your description of the events is usually helpful to those of us in the "med-biz".