Thank you for your response.
It sounds like your 40 year-old daughter may have anxiety
She had a professional job five years ago.
That indicates she has (or had) adequate level of intelligence until mid-adulthood.
As you stated, her paranoid has to do with her worsening anxiety and depression.
She is physically healthy.
I think she may need to work with a psychologist or psychotherapist weekly for several months.
Cognitive-behvaior therapy (CBT) will work for depression and anxiety.
You may ask her doctor for a psychologist/psychotherapist that she can work with weekly. Or you may call her insurance company and get a list of providers (licensed psychologists or psychotherapists) in your area.
Or, you can search a licensed psychologist on internet- such as the PSYCHOLOGY TODAY website. Go to (http://therapists.psychologytoday.com/ppc/prof_search.php?iorb=4764) and enter your city in Canada and optional category of specialty such as Anxiety. Read psychotherapists’ profile to see if he or she specializes in Cognitive-behavior therapy. You may also want to create your mental image of psychotherapist that she wants to work with – Male or female? To note, many therapists offer initial consultation for free. So you and she can see it as an informational meeting. You and she can ask any question and negotiate psychotherapy fee.
Additionally, she may benefit from having a support group for women with anxiety in your area. To find a group therapy or a support group for herself, contact a local hospital or a clinic by asking if they offer a group for women.
Also, a heart-healthy diet like Omega 3 fatty acid may improve her brain functioning and mood. Focus on fruits, vegetables and whole grains. Choose low-fat protein sources, such as fish, lean meat and skinless poultry. Hydrate self during daytime.
Physical activity increases blood flow to her whole body, including your brain. This may help improve her mood.
In addition, yoga, biofeedback, acupuncture, and massage therapy may be helpful to improve her mood and reduce the intensity of anxiety and depression.
Please let me know if you have more questions.