Long Days and even Longer Nights

Callie woke up Thursday morning with a green goopy runny nose and a fever, she fevered all day and the runny nose turned to clear, so I thought oh she might just be teething. Friday she had the fever again and the runny nose. She slept 80% of the day. Well she fell asleep around five o clock last night and when she woke up around eight she sounded like a seal barking. Well I figure she has croop (sp). Well I was up all night friday night because she would only sleep for about an hour at a time and wake up because she had to cough, if anyone has ever had the croop it kills your chest and throat to cough. Then she would get scared because it hurt, and then she couldn't breath so she would start to gasp for air. It was like she was having a panic attack. Well this has gone on all day today, I feel so bad for her, she hurts so bad and is having a really hard time breathing. I took her to the urgent care place this afternoon and they said she has bronchitis, and larenitis. That means her bronchials and larenynx have an infection. What really concerns me is that she is still trying to catch her breath and can't. I wonder if she has more of a problem than what the Dr. diagnosed, or am I just being over paranoid? Has anyone else ever had this problem, if you have any advice that would be great.