Yes, roid rage is real.
I have had to take massive steroids before. One time I didn't sleep for 3 or 4 days. I finally begged my husband to come sit by me on the love seat and hold my hand so I could sleep. I couldn't go lay in my bed because I could feel "things" in the room...it was sleep deprivation and steroid psychosis, just a little bit, I was breaking mentally from them. I felt safe on the love seat but not on the couch next to it, not on my chair, only the love seat.
So he got up at 4am and sat by me. Then he fell back to sleep while holding my hand, a little while later he sort of wilted onto the floor and was leaning on the front of the love seat, still holding my hand.
I slept for 2.5 hours and woke up frantic that something was wrong. I got up and started throwing things and was in a rage. For NO reason, just in a rage.
I begged him to take the kids and get out, that I was afraid of me, of what I might do. He said Okay. A few minutes later the neighbor showed up and I got to ride to the ER in the back of our van. I got some drugs to knock me out for the rest of that day and I didn't take the double dose of steroids twice a day anymore. The doc had accidentally given the the wrong strength and dosage times. I never ever take the docs word anymore. I always talk to the pharmacist. They are the drug experts.
So yes, in a big way, steroids can save lives and help people to breath and do lots of things. They are good medicine BUT they can build up, be taken wrong, and make your world a scary angry place.