One time I had really bad hives, the finger length raised welts started at my scalp, face, to chest and warmest areas of my body. They gave me Benydryl, 50 mg but a shot and I had anxiety, rapid heart racing feeling.

It did subside.
Another time for a worse migraine, cervogenic headpain flare from muscle spasms they gave me compasine shot and I thought I would crawl out of skin, I had to rip off everything touching me wanted to leave right then before they harmed me. Doc's came in and in unison said compasine reaction. I had ativan and was Ok.

I never want the compasine again!
The other thing that races me and anxious is my albuteral when I ahve a flare.

I think the thing must be what it does to restrict or dialate the blood vessels and how the body reacts.Maybe heart rate, blood pressure, too much dopamine release I am not sure but it is scary and not pleasant.

I can take bendryl Ok, a few, but not a big dose.
My youngest gets hyperactive on it complete opposite from what normal reaction is to kids. She bounces off walls.

Di