I fought with my husband and I am disturbed?

We had a silly argument and it turned serious fast. He insulted me and i insulted him back. Regardless of who is at fault i feel like I can’t sleep or feel good because we are on bad terms. I have been missing my period a lot because of stress and now with us fighting i feel more stress and anxiety. I feel like the right thing would be for me to apologize even if he did me wrong because i feel very stressed and unsettled about us fighting. Thoughts?
I fought with my husband and I am disturbed?
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