Hi Charza
I am sorry to read about your experience. I had a NASAH on Christmas Day 2022 with no specific cause. I'm doing fairly well physically but the emotional / mental side is tough as I am also in the depths of menopause. I haven't experienced the jerking you speak of, how horrible for you and sleep deprivation is awful.
I can't see when you experienced your bleed but I am going to assume it was fairly recent. Whenever it was, please speak to your doctor as there must be something they can do to help, even if it is temporary assistance with sleep medication - not wine!
Same You is an excellent charity - there might be something on there to help you with, here is a link.
https://www.sameyou.org/resources
I am sure you have heard it before, but be kind to yourself and treat yourself with love and care.
Best wishes, Anne x