In addition to Doolange's comment, I would investigate the following two possibilities:
1) If you are only feeling these symptoms around the house, you may want to look into some type of allergic response to something in your home.
2) Your anxiety may be not symptomatic anymore, but you may have some underlying agents still unresolved. Take a look at www.kabbalah.org to find a practitioner that can help if you do not have someone already.