Oh Hondo, bless your heart.....
You are SO NORMAL. Prednisone, or other steroids at that dose will make you a raging wild beast. I've been through it, and still have my moments. It's an incredibly powerful medication that mimicks our own "fight and flight" hormone - adrenalin. You probably know that, but thought I'd mention it.....
It's hard to control our emotions, rage, fear, anxiety, etc, when taking prednisone or steroids. REALLY hard. You're fine. It's the drug. It could also be the lupus. It plays with our body chemistry too. But from your description of what happened, and the dose of pred you're on, dollars to donuts it's from the steroids. The paranoia you had about the "non" people in your room - it's the mix of steroids you're on. Prednisone itself can cause paranoia.
I had a melt down last night where I cried like a 3 year old boy (no offense to any 3 year old boys here!) (wink wink). It was so stupid. I had been working for 6 hours on my computer doing something that should have only taken 40 minutes. My computer kept crashing (dang Photoshop software). Well, I lost it. Plain and simple, had a total bawl fest and screamed obsenities at this computer. Clearly, a prednisone induced temper tantrum.
Tell your doctor. Maybe they can speed up the taper for you. What is your tapering schedule? Anyhoo, you're okay. What happened is normal when you're on that much pred/enocort.
Blessings!
Ginny