The type of steroid I was on is called Methylprednisolone. According to Wiki, prolonged usage of this can lead to psychosis and there WERE some dramatic mood swings last week, plus some dark thoughts brought on by insomnia. But hey, it wasn't exactly 4.48 Psychosis and I'm still here.
The steroids really messed with my sleep, to be honest - it took me about a week after the last dose to get a good night's kip - and I had some weird sensory disruptions - mostly a burning feeling on the skin around my neck, like I'd removed a scarf too quickly. No biggies, though.
This particular relapse affected the whole of my left side, and dragging my leg and arm around with me gave me chronic back pain - obviously, the steroids' anti-inflammatory effect calmed that down but as they wore off it popped up again.
So last week, I had a session of Reiki. Yeah, I know, that's what I thought, but the MS Nurse didn't entirely pooh-pooh the idea and my Dad has had some success with it so we thought, why not? Spookily, the lady who "did me" picked up on the pain in my left shoulder without any pointers from me... Going again this week as it did seem to help.