Okay. That seems like an extremely inconvenient thing to live with. Must be extremely frustrating.
For me it's more like ..I can't see a 7 or an 8 but I don't have a problem with taking 2 from the 7 and "holding" the remaining 5 in my memory while I add up 8 + 2.
On the other hand if someone asks about what an apple is I can tell them they come in red or green varieties but ask me to draw one and it'll be the ugliest apple ever put on paper. Meanwhile I can draw just fine if I have a model in front of me.
The thing I seriously don't understand is why I can see my dreams though. Never made any sense to me whatsoever.