If ever you find yourself in a situation where you can't speak, you can text 999 but you HAVE to register before you find yourself in an emergency!
I had to text for an ambulance in 2018 when I had severe pneumonia and couldn't breathe/talk. I spent a month on mechanical ventilation and placed in an induced coma in critical care so texting 999 helped save my life. I had registered my mobile previously.
Test the word 'register' to 999 from your mobile phone and they will reply to confirm you're registered. This may not be instant. For more info, search "register text 999".
Reasons you may be unable to phone the emergency services include, but are not restricted to:
Anaphylaxis
Restricted breathing
Severe injury to throat or chest
If you are deaf or mute
If you are in a fire and talking may increase smoke inhalation
In a terrorist or hostage situation where talking may reveal your hiding place
Do it now please. It takes 10 seconds and may save your life or somebody else's. I'm not posting this to be dramatic - you just never know when you might need it.
Thank you.