I do find some of these messages confusing (maybe its me). At one time Essnell said she only has 6 people in her tree and later seems to say it is a big tree with 20 years of work on it.
Whatever size I think she should download a GEDCOM and load it onto some program on her computer and do some error checking there. I believe some programs like Rootsmagic etc can be synched with trees on Ancestry. That might keep controle of the ancestry tree.
Essnell wrote "On checking I am on the tree and someone else has me as well with different information --- and I am living...at least I hope I am.

I shouldn't be visible. That should be private.
Essnell"
"I am on the tree" does that mean her tree?
"someone else has me as well" does this mean someone else has Essnell on their tree on has her on her tree? I guess the former but what did Essnell mean to say?
Assuming that she Essnell means she is appearing on someone else's tree then unless she has been marked as dead or as born more than 100 yers ago then am I right in thinking that no detail should be shown.
These are trees on Ancestry aren't they. Not some tree on Familysearch where anyone can go in and muck about. I know that's an odd question but what is going on with Essnell's tree is hard to explain otherwise unless there is a security breach of her Ancestry account or her computery.