Here are some answers to your questions:
1. Having no response does not necessarily mean anything. If the tests were performed when the physician heard
wheezing, the tests were done right and the results are as you describe for the FEV1 (not consistent with these numbers), then asthma is less likely.
2. This is possible. Asthma can occur after some respiratory infections. It is also possible for this to occur as part of her hormonal changes of
pubertyPuberty and adolescence. This is also a common time for asthma to start.
3.I cannot assume that your daughter has asthma on the basis of what you have described. There are other possible causes and some of these do not respond to albuterol inhalers.
4. Without a diagnosis and with persistent symptoms that involve the chest, seeing a specialist is a good idea.