Hi all, i have just got back from having the short synacthen test, an injection of chemical ACTH to rule out Addisons disease. They only took my blood before and then 30 minutes after. I was worried about having side effects but i was absolutely fine. The injection is intramuscular and was VERY painful. The thing i am interested in is how i felt after the test - i know the NHS wont be bothered but i wondered if it might have some bearing on what is going on with my hormones. I actually became incredibly calm, to the point of feeling unbearably sleepy. Like the saying 'so laid back you could fall over.' Its not that im ususally not calm, just that i had a very enhanced type of calm and sleepiness. Any ideas? Justy.