I'd like to start off by saying I've have my period for about 14 years. It's been very regular and I've had the same PMS symptoms for as long as I can remember which only include mild cramps, mild back pain, headaches, & fatigue... until now. I'm due to get my period in 2 days and for the last 5 days I've been experiencing super tender breasts as if I was pregnant again. I've never had tender breasts as a PMS symptoms...ever.. and there is no possibility of pregnancy (did not have intercourse at all this cycle) so I'm wondering what's going on with my body. I understand it's hormone related, but why would it be changing, now? I'm only 26. Is it normal for PMS symptoms to change for no apparent reason? Or is this a sign that my hormones are not in check?