Glad to hear your hive is okay! I was really concerned when I saw no bees but SHB. You had mentioned the bees were mad and head-butting though, which I didn't associate with dwindling and few bees so I asked.

I agree with shannonswyatt, I would not brush them off the comb unless you need to do something particular or are harvesting it. I wouldn't move them now if they are weak, but most seem to agree that more sun helps fight SHB. It gets pretty hot and humid where I live so I compromised and put mine in partial sun. They get a little morning sun and then full sun midday for a few hours. They beard but seem to be doing fine.