WhatsApp hacked?

jz7

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Jul 1, 2019
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I'm not sure if this is a WhatsApp glitch or a hacker but I sent a message to a friend (message A) and then a few minutes later appeared another message sent from me but I didn't send it (message B).
Message B didn't make much sense and it contained parts of message A repeated and it seemed like it could have been a predictive text glitch were it not for the word "p*s*y" being used.
I checked WhatsApp web and there were no connections, I also did a Kaspersky scan and nothing was found. I'm using Android 9.

If this a hacker? if so how have they managed to use my account?

Thanks for any help