Is it a sin to be re-baptised?

during a difficult time in my life, I briefly left the catholic church for about 6 months and worshiped in a non denominational christian church and was re baptized (in a lake) I returned to my catholic church and wondered if this was something that I should have confess to my priest?

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Recommended Reading:

Do I have to be baptized again?
Have I voided my infant baptism?

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