what you described in the beginning of this thread can be just about any thing....

example in some people I know repeating questions, actions is part of their ADHD in others its their bipolar disorder, in others its their learning disorder, in some people its part of their PTSD, in others its part of their anemia, cancer or other physical health problem, like others have posted it can be OCD or anxiety. it can also be normal or any other of the millions of mental, physical and normal things these symptoms can be.

here on this website we are not supposed to try and diagnose each other or each others family friends..... this is because we can end up doing more harm then good... for example someone I know had these same symptoms and was told online it was OCD and the problem ended up being a physical health problem not a mental one that special medication took care of. she was lucky she did not go on what people online told her and contacted her doctor. otherwise she would not be alive today.

another example someone I know went online hoping to diagnose their brother with these same symptoms. again they were told OCD but guess what the problem really wasnt a problem because it was just a normal part of life for the age of that brother.

Another example was my wife, she had this same problem where she was getting tired of this one person asking repetitive questions and doing repetitive actions.. being a treatment provider she was guessing that her family member may have anxiety/OCD. but the reality was not a problem in her relative, the problem was with in herself. She has a mental disorder where sometimes she fixates on something and then pays attention to how often that action is done, and then gets irritated when she cant figure out how to make that person stop doing that action. the name for it with my wife is Psychosis / delusional thinking.....perceiving something that isnt really happening as being really happening. her psychiatrist put her on some meds and she stopped fixating on other peoples actions.

I know that you want to figure this out but her doctor is the best person to diagnose the problem. here on Psych central there are members with all kinds of problems so the answers to questions like this are going to be people posting maybe its this maybe its that and giving you links based only on what you are posting. a qualified treatment provider can look past a post and see whats really happening. so Im very glad to read that you will take her to a doctor.