Why didn't the doctor at the urgent care do a chest x-ray to check for the fluid, if she was concerned, at all?? Medical school 101 says she should have done this if she had ANY inkling this might be the problem...vs sending you on your way with a script for a steroid inhaler without any breathing tests being done to confirm it's necessity. Those steroid inhalers have risks. But more importantly, the use of this inhaler WILL skew your breathing tests that your pulmonologist will be doing in the office at your visit. You will need to make sure not to use it for several days before you go.

I understand your concern...as you should be. I would consider going to the ER if this worsens or you get any other symptoms during these episodes...like lightheadedness, weakness, etc. By all means, (if you choose not to go), email your doctor first thing Monday for instruction and express your concerns and what the urgent care doctor said.