Heh, this reminds me of how I think my Mom is ISFJ, since her memory and ability to notice when something has changed is off the charts. She knows my medical history in extreme detail and notices things that I just don't and never can. She never forgets what I owe her and what state someone's account is in, or what tax/forms/etc they need to be doing and by when. She claims she has a bad memory but thats maybe no more than short-term junk like a grocery list. When she tested she only came out as 22% N, and I likely think she's mistyping herself out of want to be more N, like how a lot of S's mistype as N. The only thing that was really solid was her J, and hell, even her I came out in the 20s, as was her F. Which is why I think mistype, since F's tend to want to type as T's or at least think everything they think is pure logic only because their society values one and calls the other being a flighty little flake XD. (If her F can come out low even though she obviously is, then that lends more credence to a N/S mistype, I mean)
All of her senses are extremely acute. She notices every tiny wiff of a smell and goes insane long before anyone else can smell it. She hears everything, and if her eyesight weren't so bad I bet she could spot a speck of dust on the moon. While I never notice a mess till someone points it out, she notices a mess almost before it happens. Speaking of medical stuff again, she notices when I'm having an allergic reaction before I noticed that I feel itchy or sick, or realized what it meant.
If shes in her own head, its always means shes mad or stressed and is about to kill us all. When I'm in my head, its just my normal state. She has never understood my spacing out and how I can not notice when people call for me when I am focused on something.
Also, she can't let the past go, and tends to only really talk about future possibilities when someone else talks about it first. She needs inspiration of others (me, my Dad, someone she works with) to really pull out of right now or the past and into the future.
She likes to do things out of a feeling of obligation, even when the person she's doing it for is really only being enabled by it. She can't even talk herself out of doing so until years later either. However, she then plays victim and talks endlessly about how she's nothing and nobody to everybody. Even to the point of saying everyone around her is horrible to the extent of even being predudiced to certain groups of people in a totally american-south kind of way.
Next, she can't get into the computer use in any real form thing at all. She uses email and checks the weather and thats it. The most she's gotten into games or anything is this one casual site (that cheated) where you could earn real money. She was on that for 5 months, realized it was cheating and hasn't played anything since. She can't see the appeal. She never listens to music, and only reads magazines, though gardening and homelife ones, nothing stupid like Cosmo. She watches tv everyday and HAS to see the news, no matter what. If you don't change to the news she will get panicky and angry.
(Also, she once went onto a forum and spent several days after bitchy about how it wasn't as quality as she thought it would be. Like how she was expecting grand answers and was seeing people making one sentence posts, and thought the whole point of a forum was thus meaningless. She got very nasty talking about it too, full of hate and venom for the people on it.)
Lastly, she has no skill in humour (always seeming to think simply saying the same thing in a funny voice she says every time she wants to be "funny" as funny. Si loves to keep doing the same thing.) Also, she almost never gets me and my Dad's humour, even after years living with us.