Symptoms gone 6w4d concern about boobs

I only vomited ones @4w3d, almost no nausea, the only symptoms I have been having are extreme fatigue, hunger, and my boobs were super sensitive, heavy and big. My hcg doubled every time, I saw baby on ultrasound and the heartbeat everything normal but yesterday I felt my boobs at regular size and almost no soreness. Should I worry?

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