If she is indeed paranoid - you might put yourself in danger. Don't go visiting.
I remember the little old lady who grabbed my by my lapels and yanked me thru her front door - slapped a collander on my head and stuffed me below her kitchen table - all in split seconds. This little lady was a chubby, petite, white haired lady who stood less than 5 feet tall and she had the strength of Goliath.
She had an infant (I was investigating allegations of abuse) tucked so tight into her amble bosum that the baby was limp and turning blue. I remained calm and convinced her to let me hold the baby. She finally gave him over to me and the baby let out a big gasp and then started screaming. I have no doubt that baby would have been dead had I arrived 15 minutes later.
She told me that the FBI was using satellites to send ray beams into her head and that they were trying to kill her and everyone in the household. She was deadly earnest.
This was before cell phones and 911 and I had no way of contacting backup from law enforcement.
I lied to her!! I told her I would call the FBI and tell them that I had checked her out and there was no need to harm her. She agreed and I used her phone to call police.
At first the dispatcher thought I was a prank caller but eventually I convinced him to send a squad car and advised them that the door was open and they needed to come in quietly.
They arrived a long 20 minutes or so later. I just kept talking to this sweet little lady and kept the baby in my arms.
End of the story: She was a foster parent who had this baby placed in her home from the time of his birth. She had a doctor who put her on Halcyon. The medication made her delusional and paranoid. After detox she was back to her usual perky and sane self and went on being the wonderful foster parent she had always been. .... And she fired that doctor. A sweet darling little lady who was as dangerous as any felon during that particular point and time.
Should have seen the officers (Ones I had worked a lot with) faces when they saw me all disshelved, packing a screaming baby with a colander/strainer on my head. Took everything they had not to burst out giggling and falling to the floor. They told everyone back at the station that they were not absolutely certain which one was the crazy one and which one they needed to do the WI-5150 on.
They (Del Norte County/Crescent City PD) had a lot of fun at my expense and told every one that story for years. I wonder if they still do?
I'd write a book but no one would believe it.