Hi Monomo welcome to the forum and I am sorry to hear about all that has happened and continues to happen for you. You have been through the mill that's for sure.
I am not sure about the Brca2 gene but I can imagine that having your Ovaries removed will have thrown you straight into Menopause hence the hot flushes and with that the anxiety. The level will have increased but they are both amenable to treatment so don't put up with it if it gets too bad and ask to be seen at a Menopause Clinic to see what they can do to help ease the symptoms for you.
Hopefully some of the other lovely folks on here will be along soon and may be able to offer some further advice for you.xxx
gail
