Based on the context and the answer, generate a question. 

Context: Blood donation line Please read this post first . Woke up to fighter jets at 4:30am today . In my half asleep state , I thought my cat 's purring was bombs . I woke up today and wanted to do something .

Answer:

They gave blood and are blaming that for their strange dreams they had .



What did the author likely do that caused them to have such a weird dream ?