The singer said the diagnosis put her mind to ease as she was unable to understand the cause of her sickness.
"For the longest time, I didn't understand why I felt so sick. Why I felt lows that made me not want to leave my house or be around people and why I felt highs that wouldn't let me sleep, wouldn't let me stop working or creating music. Now I know why.
The "Say my name" hitmaker added her next LP will be her favourite because she is "not holding anything back".
"I love you all very much. And I hope you accept me as I am," she said.
Rexha, 29, said she does not want anyone's pity and was only seeking acceptance.
"I don't want you to feel sorry for me. I just want you to accept me. That's all. Love you," she said.
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