Up all night

Last night I arrived home from work and grocery shopping around 12:30am. As soon as I got home my husband came and told me that Jonathon, our 16mo old,was burning up with a fever and he thought he was having trouble breathing as well. So, I took his temp, gave him Motrin, and we headed downstairs to rest on the couch, so that dad could get some sleep. Jonathon was did not seem tired, and I was not really yet ready to dose off either, so we watched a rerun of the Duggar family on Discovery Health before going to sleep. Jonathon was very restless,coughing pretty hard at times, and finally after a 1/2 hr or so we both fell asleep. About an hr later(3am), I was awakened by some noise, and this horrible yelling, or at least that how it sounded to me. It was a womans voice, and they were just screaming, with no words. I listened for a few seconds thinking maybe one of the girls was having a nightmare, but that was definetly not it. It kept going and was so loud I thought for sure it would wake up my husband. It sounded like either someone was being murdered, or there had been an accident. I thought for sure I would see lights and sirens from the police at any moment, b/c I could't be the only one who was hearing this in the neighborhood and someone would surely call the police. My mind started racing thinking of all the things it could be, and I was SCARED! I thought that if someone needed help, they might come to our door looking for help and then what would I do? Or what would we find, or get caught up in? I started praying, and I mean PRAYING, for protection for my family. The noise stopped after about 15-20min. No one woke up, and it was dead silent until this am. I, on the other hand, was so freaked out by this that I resolved myself that I would not fall asleep until it was light out, or until 5am, this seemed like a reasonable time to me(only b/c I remembered it doesn;t get light out until around 6-6:30am.) I did not want to fall asleep, and be awakened by this noise again, didn't think my nerves could handle it! I was too scared to wake up husband during all this b/c I was afraid of what he might find. Isn't that silly? So, after some thinking, which I did all night, or should I say morning, if it wasn't a person, my only other thought was that it was an animal. Maybe a cat fight, or a fox chasing a cat. I'm not sure.Am I crazy, losing my mind? All that I know is that I am exhausted, and after my coffee wears off, and I get back from taking the baby to the dr. I will REALLY be needing some sleep!