Today, I got all annoyed all over again and sent a request into LJ support. And got an answer back with a proper filter!!!
It shows how to filter your friends page but all the filters work on your friendsfriends page, too!!
So to get what I want - no communities, no syndications, no nothing - just journal entries, I can use:
I am so doing the happy dance.
The rest of the day - after this morning was way better. When I am quiet and don't move much, I can breathe like a champion. No coughing, no panting. I can even take a deep breath easily. That's what all afternoon today was. Being still and quiet - watching TV and knitting - and breathing fine. At least I know what works.