Since I started menopause in 2006 and was dx with lupus the end of 2007, I don't know which is a hot flash from the change and which is from lupus.
But when I started having hot flashes, they were like yours, sweat pouring out of me and feeling like I am going to pass out.
They happened in the beginning 20-30 times a day, luckely today only 4-5 times a day, today I don't have the sweating or the faint feeling anymore. I just get hot and beat red, from the waist up to my face. It's so bad that when I have a flash, people ask me if I have a sunburn.
As for the pain in my shoulder blade, it is one of my biggest complaints. My shoulder blade is either throbbing with pain or numb, the numbness is not fun either.
My answer is probably not helping you, but at least you know, you are not alone.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).