Lonelyperson, please pardon the questions (no need to answer to anyone):
- How long have you experienced rapidly shifting moods?
- What do you mean by "always locked up?"
I'm sorry about the loneliness and despair. Do you have interests or diversions powerful enough to blunt the bite of the bad feelings?
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.