Hi Ellie, seriously, you do need to back off and have space, and not give so much attention to the condition she feels she has, as you are feeding the anxiety.
It sounds like her doctor is onto her and that is why he has recommended a cat scan.
With Hypochondria the person will not be happy until the serious extreme of a condition is ruled out.
She will have a pain and immediately think it is the most serious of whatever that pain could be.
It is a type of obsessive compulsive disorder/extreme anxiety that needs treating.
Could she have suffered a sudden bereavement in the past that has triggered this fear of death?
something in her past has triggered this 'victim' mentality.
You have to lighten the atmosphere with her, try and have a laugh with her - it's scriptural!
Listen to her of course, but don't allow her to keep talking and dwelling on herself as that is only feeding the condition.
She really does need medical help for the anxiety and counselling to get to the root.
Pray for God to reveal the cause and for her to find complete release from this bondage.
I would also strongly advise you to back off from her a bit though for your own sake.
Don't allow her to dominate your life.
It is so commendable that you have a heart to help, but she needs professional help.
Be aware that you can also be distracted from whatever else God has for you.
In the case of my friend of 30 years, she was all take; take; take; as in the warning in Proverbs 30 v 15.
When I hit a deep crisis after coming forward as a victim of abuse and needed the support of my friends, she was still take; take; take! even having me at her home at 3 in the morning to comfort her.
One day when she refused to ring numbers I got for her to have professional help but was still asking advice, saying the same things I'd heard day in day out - due to the situation I was also carrying, I collapsed in the kitchen and my daughter and hubby had to carry me through to the living room. It really scared me as I realised how close to a breakdown I had become, all my energy had drained.
Another friend, who was our Pastors daughter and worked as a detective and was looking after me, banned me from answering the phone and was so angry that this friend had continued to behave so selfishly towards me. My husband told her that I couldn't handle her situation any more and I'd tried everything I could to help.
I realised I had to back off and have space and be cruel to be kind, so she'd have no choice but stand on her own feet and do something for herself.
My mam prayed so fervently over me breaking the cords of the friendship, as she was like a leech in proverbs 30, draining away my energy, peace and joy.
The prayer worked and although I still see her at church - and she still only rings me when she desperately needs a favour - aaargh!! there is not that power over me anymore, the bond of 30 years has been broken and she did get herself sorted out. She was then so proud telling me of her acheivements.
Please don't allow yourself to become in bondage to her and lose what God wants of you.
Search the internet for advice on 'dealing with hypochondriacs' there's a lot of information out there, but as I say, she needs professional help.
I do hope this helps
bless you Ellie
Ceri