Betamethasone/steroid shot question

So long story short, I was in L&D yesterday being monitored because my blood pressure is high, my head was hurting, etc. They monitored me for a while and it went down, but the doctor still wanted to do a few tests and give me steroid shots for the baby just in case. I got one and I'm going in for the second one this afternoon. 
So my question, have any of you had these? Did you have any weird side effects? My arms feel heavy and I'm kind of achy. Granted I'm always achy, but still.