@gidkip Welcome to Mayo Clinic Connect. Your sister is experiencing extreme anxiety and memory loss and you are concerned. Members like @artscaping @abopp2022 @bibinance @anxiety227 @firewolfpup17 @buyearly @flamecharley @jenniferhunter have experience discussing a similar topic and may be of help.

Below I have linked a couple of related discussions. You may wish to scroll through the posts to get previous suggestions and information.
- Increased forgetfulness and Memory issues/ Mental health or other? https://connect.mayoclinic.org/discussion/increased-forgetfulness-and-memory-issues-mental-health-or-other/
- I cant remember my panic attacks https://connect.mayoclinic.org/discussion/i-cant-remember-my-panic-attacks/

I'm wondering if you can give us more information? How old is your sister? Has her thought patterns and behaviors changed otherwise?

It's impossible to know if anxiety is causing your sister's symptoms or if your sister is feeling anxious because she feels a change in her mental status due to an organic brain issue/mental health episode. As I mentioned, your sister is experiencing a change in mental status and it's important that your sister seeks medical attention as soon as possible to rule out any serious organic or mental health diagnosis. May I ask why she has done so already?