Cortisone Acetate and heart

I had epidural cortisone shot in L1 for degenerative bone spurring. Left the hospital feeling a little dizzy and stiff in the buttock area. Next day felt good, but by the third day i had terrible stomach pains and severe nausea, not able to eat. Stomach felt like it was in a big knot. I feel very restlessness and can feel my heart beating out of my chest. Due for 2nd shot in 3 days..... forget it!

I am 22 years old and had 2 cortisone shots in the back of my head. About two minutes after, I passed out, stopped breathing, and my heart actually quite beating. Luckley it happened while I was still at the Clinic.

i have arthritis in my right knee. my knee cap was chewing up my knee joint causing a grinding and clicking noise.
i got a cortizone shot and it hurt like crazy for about 10 minutes.
20 hours post shot my heart is racing like i was terrified, my knee is swollen, and i am nautious, but the pain is at a minimum. the doctor told me to take it easy though because i still have arthritis. this just lubricates it. but if i exercise too much it could send me right back to square one.

had a shot yesterday (26 hours ago) in my hip area. doc said shot did not contain adrenaline as some do. i have mitral valve prolapse problem and was afraid of heart speeding up from shot. thankfully, that has not happened yet. i am curious from all the people that complained of "heart speeding" up, whether they know for a fact if shot contained adrenaline? also the facial flushing and burning eyes started a few hours ago. thought i was developing an infection from the shot but now i read it's a common side effect. no fever. going to sit outside in the cold to try and get some relief... thought everything was okay as i assumed side effects would have hit me immediately if they were going to at all. help!