What are your menstrual symptoms?

I used to always be regular. I would have my period pretty much on the same day every month. I noticed after having my second child that I started changing. I mostly still start around the same time every month but for this last year I am starting to get PMS. I am grumpy a week before, I am crampy days before, I am starting to get lumps on the side of my that freaked me out but the doc said its related to my period, my flow is changing, I am more tired and I sometimes get headaches! Is it because I am getting older or do you think it could have been the birth of my child. Do you ever get those lumps on your ? Its so wierd! oh and if you have anything else that I didnt mention then feel free to add to your list of monthly woes to share!