For me its you know that your memory knows where its at but you are just failing to recall that specific memory, but for some reason you can pull up all the other memories of where you have seen it before and so you have go looking in all those places to find something to recall it. Another similar thing is when I am using my phone i want to do something go to switch over to it, forget and i will go back to what i was doing before and look for what i was looking at the time when i had the thought and i instantly remember.
For me its you know that your memory knows where its at but you are just failing to recall that specific memory, but for some reason you can pull up all the other memories of where you have seen it before and so you have go looking in all those places to find something to recall it. Another similar thing is when I am using my phone i want to do something go to switch over to it, forget and i will go back to what i was doing before and look for what i was looking at the time when i had the thought and i instantly remember.