Yes, it absolutely is the right place.   Welcome. :-)

Yes, you are in the right spot...however, if senile dementia is the
diagnosis your mother has been given, I'd strongly urge you to get
another doctor.

Dementia is just a descriptive term for a group of symptoms -
essentially, it just means confusion. So, all the doctor has told you
at this point is that she's old and confused/forgetful, which I suspect
you already knew before he/she was consulted. Being told you have
dementia is no more helpful than being told you have a fever, since it
doesn't tell you what the cause is, or give you any indication of what,
if anything, you can do about it.

What you need to know is the underlying reason for her dementia
symptoms. In other words, you need a proper diagnosis. Dementia is a
symptom that can be a result of drug interactions and side effects,
nutritional deficiencies, strokes, hormone problems, lung problems,
tumours, hydrocephalis, and a whole host of progressive neurological
diseases such as Alzheimer's. And that isn't an exhaustive list...there
are more things out there that can cause alarming cognitive
impairments. How a doctor diagnoses is by doing a series of tests and
screens to rule out various causes one by one.

It does matter what the cause is, because some causes are quite
treatable, and even reversible. Even the ones that can't be reversed
can often be slowed down, but to figure out what can be done requires a
diagnosis. There are some causes of dementia that are made worse by the
same drugs that can help with other causes.

Mary G.