Oh STella, I've never had a nightmare so cannot begin to commiserate or even comprehend.
But the dream where you try to scream but cannot (I've had those, often, recently), means that you are being somehow repressed and dare not remonstrate.
I went to bed at midnight and couldn't sleep till at least 4 or 5 am last night. I stopped looking at the clock after 2am. Don't know which is better, the mad dreams or the insomnia.
Take care tonight?
...and hopefully sleep in your own comfortable bed, with your favourite pyjamas on (or blissfully naked, whichever you prefer), your nicest sheets, all your favourite belongings around you perhaps...
I've recently started taking my crystal ball to bed with me (to see the future?
Sleep tight, sweet dreams tonight?
xL
Switch off (throw away?) that !alarm! clock and anything else near your bed with bad vibes.