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So I’m 18 and for the last few weeks, only my right boob has been really sore and tender, but only when I touch it. It’s not horrible pain but it’s definitely uncomfortable. I’ve experienced this several times before but it only lasted for a day or so. My periods are highly irregular so I’m thinking that it’s not hormonal and I’m not about to start my period due to the pain lasting a long time vs. a few days but I’m not 100%. Is this normal for the pain to last this long and is it likely my period? Or should I be concerned?