Anyone else have this??

Usually about a week before my period I get overly emotional and I just feel like my hormones are raging. It's almost to the point where when I'm at work I can't control my emotions and it's very unprofessional. As I'm feeling all crazy I get all frustrated bc I don't want to be almost in tears or freaking out over something little. I normally always have been like this since I've had a period but as I'm getting older I feel like it's getting worse. Is it because I have more stress now in my life or could it be something else? I have a doctors appointment but not until august, should I try to make it sooner or does this not seem serious? I just feel like an extremely hot mess! I'm also 21 and have been trying to conceive for a little over a year now.