I have heard that schizophrenia in some cases can lead into various dementias.

I read one study that said normal onset schizophrenia can often lead into frontotemporal dementia, and 5 of 17 severely cognitively impaired patients with schizophrenia went on, most rather shortly, to have frontotemporal dementia.

I read other studies, quite a few, that said late to very late onset schizophrenia often turns into Alzheimer's like 50% or more!

I'm scared because ever since my second acute psychotic episode at age 29 I became substantialy cognitivley impaired with bad memory problems, mostly for retaining what I read. 

Now I'm noticing I forget famous celebrity names quite often, but usually remember most of them later, but not all.  A couple of times I've forgotten people I knew quite well's names like my pdoc I saw for 4 years.  Later on that day I recalled his name.

I don't have any confusion or disorientation, and I tend not to forget basic tasks like planning ahead, or how to do things that are signs of many dementias.

But the memory loss scares me quite a bit!  Most experts and doctors, including my neuro have told me that a wide range of cognitive impairments including memory problems is often the norm in schizophrenia, which is why it was once labeled dementia praecox by Emil Krephinil.

Can any of you steer me in the right direction on this question?

Devon