I think she's missing the point. If those tweets do make her look bad, it's not because she was going through some sort of a breakdown at the time, it's because she claims in them to have no other means of contacting a psychiatrist other than through twitter.
You have to go online to get onto twitter. There are many places online where you can get information on the support available to those suffering from all types of illnesses. Twitter is probably the last place anyone would go. Unless they were "Just looking for attention".
perhaps it was a cry for help?
in which case twitter is probably perfect.