I also had high (but not this high) doses of prednisone
via IV during an 8-day hospital stay.
High doses of prednisone
can also affect your mood, make you anxious, increase your appetite, make you swell (edema), affect your blood sugar levels causing (hopefully temporary) diabetes. I'm sure there's more, but those are all the symptoms I've had from high doses of prednisone via IV. Oh, and it often causes insomnia. I strongly suggest asking for a sleep aid if you're not opposed to them.