I recently had a Celestone shot and within two days I was in the ER with bradycardia, dizziness and the runs. The past three weeks have been not good. While the shot is wearing out of my system and some of the side effects are gone as well, I am now left feeling tired. I want to do stuff and I have the energy but five minutes in, I'm lightheaded and feel like I ran around the block. My chest feels tight. Doctor just mentioned I have rbbb but nothing else. I need info on this...