About three weeks ago, I was raking leaves. It took a little over an hour. The next day I woke up with my arms sore (to be expected). However, I noticed that when I took a shower, I noticed my breasts a little sore, my right more than my left. The soreness in my left breast went away, however, my right breast is still sore. It doesn’t feel too tender and there are no lumps that I have felt. I’m 19 as well. Now that I’m about to start my period in a few days, both breasts are sore again. Now this may be just a completely stupid thing altogether… is it possible that I pulled a muscle and me still checking on it daily still can make it sore? I’m not wanting to be ridiculed, but I’m a college student living away from home. It also doesn’t help that I finally was labeled “healthy” again after being sick for two months (on constant medication) which resulted in surgery.