sore nips? is that a sign?

ok so at 6dpo i had flu like syptoms cramps stomache ache couldnt eat or even think about or look at food headache diarrhea a temp of 100.3 but it went down to 99.8 before bed woke up 7dpo and no temp just congestion and very sore nips not like my whole boob just my nips hurt.... what could this mean?

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