I was in hospital this morning as I had an asthma attack at 3am. They gave me respigen through a spacer and prednisone. I've have since been getting headaches and feeling very nauseous from the inhalers. My heart feels like it's racing.
In brief: Asthma inhalers
In brief: Effect of Inhaler
Usually it is transient and settle, but if it persists you should go to hospital for a check for other causes of racing heart