I can't tell you if it's a flashback or not. Not sure that I've ever had one... at least not as vivid as some say they have.
Is this something that really happened to you or is it more of an insight into how you became ill? As you can tell, I don't know much about Bipolar. I had always thought it was nothing more than a chemical imbalance in the brain.
{{{{{{{{{{{{{{Bips}}}}}}}}}}}}}}}}}}} I hope you feel better soon. Remember I'm here for you, ok?
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.