I had a Kenalog 40 injection on January 12 2006. I missed my period in January. I finally started in Feb. It lasted 10 days. At the end of the month (2 weeks later) had another period that never stopped. Had a D&C March 31. I bleed 7 days after and then two weeks to the day from the bleeding stoping I started what I hope to be a normal period. It is a very heavy period. I was never told all the side effects. I had the injection in my right shoulder.I am so mad about this. I now have several thousand dollars in medical bills just from the side effects. After my insurance paid.I had a severe allergic reaction a few hours after the injection. Trouble swallowing, Shortness of breath, chest pain, lump in my throat that lasted for several weeks. Flare up of my GERDS. Unexplained high blood preasure. It was 3 months April 12 everything has returned to normal except my periods.