I’m so sorry for the loss of your mum, @fairytalesarenotreal. You are not alone. Many of our members have lost their mums and will understand some of what you’re going through.
You might also want to read this thread, where some of our members who’ve lost a parent talk about health anxiety:
I’m giving your thread a gentle, “bump” - I’m sure someone will be along to offer their support.
Take care 