If you’re as sensitive to energies as I am, you might find this article helpful.  I’ve learned one of the most important ways you can care for yourself when you’re overwhelmed with other energies is to ground yourself.  I usually picture a big, thick, mauvy uniform bubble around me for shielding and protection while holding my black moonstone; this always makes me feel much better within seconds.  There are many grounding stones e.g. smoky quartz, black tourmaline, Tibetan quartz.  Choose one which resonates with you.

http://healing.about.com/od/empathic/a/hsp.htm 

*Photocredit: Shane Cloud