I'm not a LAWL girl, but I wanted to say my peice too
. I agree that if you feel the need to take ANYTHING, consult with your doctor. He may agree or disagree or even give you something else, but at least you are doing it under a doctors care. Having said that, because your stress is situational rather than long term anxiety, etc, I would recommend more natural approaches.
For a little personal history....I am bipolar. I learned this last summer. Medicines doesn't do it all for me. I'm not telling you this to suggest that you have a mental illness in any form. I'm telling you this so you realize medicine won't cure anything. It can help, but it won't cure. I'm also giving you this history so I can share a little about what I've learned that works for me.
Sleep. I have sleep issues, but sleep is my number ONE restorative process. As a side benefit my scale notices when I sleep too. Not kidding there!!
Give yourself some personal time to yourself. This may not happen during work, but after work I need something. Some quiet time doing something I enjoy.
Transition Time: Because I have kids, I have to transition from work to school. I take ONE hour to do something else or chat with coworkers before I pick up my child. It works wonders. I call this transition time. I do the same thing when I soak in the tub for 30 min every morning and think about my day.
Do some stretches in the morning. Just like Yoga and other stretching excercises, it is relaxing.
I like shopping, going to a bookstore, listen to music (very occasional for me), read a book, etc.
Reprioritize your day. During a work day you may not be able to change focus or have the choice about how to prioritize your day, but if you do, be honest with yourself and prioritize differently on days when you are feeling overburdened. Then congratulate yourself when it is a go getter day.
Go for a walk during lunch. Those endorphins kick in.
STOP and breathe deep. Go to the bathroom and do this in privacy if you need it.
Talk to your doctor if you continue to need help. This includes before trying OTC stuff. It's just as potent.