Hi, my 17 year old daughter has been complaining of having trouble taking a deep breath, she isn t having gasping for air kind of thing, but the other day she said it felt as someone was sitting on her chest but that stopped, my other girls were sick recently with a cold, not sure if she may be getting something or not but she really doesn t have cold symptoms, she keeps telling me is fine, but it is concerning, she is pretty healthy...Thank you