This isn't directly about PN, but asthma came along with my autonomic problems at the same time and everyone here is so knowledgeable so I thought I could ask:
I used the steroid inhaler for the first time on Sunday morning and didn't get relief for my breathing. It made me shake like crazy, sweat and feel panicky. The following morning I woke up and my asthma was gone. For the entire day and through the evening my breathing was back to my normal low blood pressure breathing. Now I woke up this morning with the asthma back full swing.

I thought the improvement was due to the rain dampening down the tree pollen, however it is raining again today and I am a mess.
Could that one puff on the inhaler have not kicked in until 12-24 hours later?