Hello there,
You are undergoing a major change in your life, your marriage. That can be stressful and it is possible that you are going through emotions and feelings that are too hard to process for the time being. You could be facing various insecurities and worries about life after marriage, and about leaving home. It would perhaps be useful for you to sit with a pen and paper one day and list out the things you could be feeling worried about. Once you are aware of what is bothering you, you can resolve each issue. Right now, I would recommend that you enjoy your wedding. After a while, you can sit down and have a discussion with your husband about how you want to handle things post-marriage, including your personal and professional life. If these steps don't work, you can visit a psychologist in order to work out your feelings by getting some professional help.
Next Steps
Introspect on yourself and consult a psychologist if necessary
Health Tips
Keep a diary with you at all times and make a note of all the things that worry you or make you anxious