Invisible wall

The Ring Cycle begins today in Melbourne (my thoughts on the Melbourne Ring coming soon) but I flew back to Sydney, having spent 10 music/art related days in Melbourne. I am feeling a bit shell-shocked, as if I have been away six months not three weeks. The past weeks have been a hurdy gurdy, travel to NZ to farewell my Mother, then a day home to recoup before racing south to Melbourne.
Now I am home again and I am wondering if I am going to hit some invisible wall. I think a good sleep will help.