Premies usually do. Hard to tell at this point, though. They were both breathing without assistance, but of course they are in the special unit. So nothing yet, but we'll have to see.
Thankfully, she is a step-cousin (she has no involvement with her father and calls my uncle dad, and he refers to her as his daughter, not his step daughter so as far as we are concerned, she is our family) so she does not have asthma nor the genetic predisposition in the family for asthma. A lot of premies end up with asthma, so at least there's no genetic factor there.
The problem is that she is so tiny that it was hard for her to carry twins. She wasn't due until early August, but her doctor put her on bed rest at the end of March. So it's not terribly surprising.
I said, "Well, if they were going to be premature, couldn't they have waited two days?"