I'm SO SORRY !!! I so know what you mean about 'turning off' your thoughts - I can't turn mine off either and it's been months since losing my husband -
I hope this is a non cancerous cyst - your odds are good even with your mom & aunt having the same thing (I'm so sorry for your losses)
my prayers are with you .... and ps - I live alone now too
and if you ever need to talk just shoot me a pm -