Oh yes, every time I get a shot I have flushing. That is a common side effect. I slept on my side last night, too. I was unable to sleep on either side for long. I'd get up and walk and then could sleep on my side again. Last night was wonderful, if it wasn't for the insommia. But, was up before 4:30 am. That is a common thing for me after the shot, too. It was after 11pm before I fell asleep, so I'm a walking zombie. Do you have insomnia afterward? It sounds like you have bursitis, too. It's something that doesn't want to go away.
I had considered getting a shot in my left knee at the same time but decided to see how it does after this hip shot.
How are you doing? Have you noticed the knee improving since the hip has?