Sida Acuta is a potent antimicrobial and it sounds like you are herxing on it - sorry.
Have you increased your detoxing? If not, please consider doing so and keep it at the increased level...daily. The site I'm linking below has quite the comprehensive list of detoxing methods:
www.tiredoflyme.com/detox-methods.htmlI herxed with anxiety on Buhner's Babs and Bart herbs and got relief from Buhner's recommended Motherwort. (I was already taking Hawthorne).
Buhner recommends fresh herb preparation of Motherwort which is sold by Woodland Essence. I slowly titrated the tincture until I got up to the recommended 1/2 tsp 3-6x daily. I only go up to the more frequent dosing if anxiety is a problem. 3x daily seems to keep most of it at bay.
If you don't have Buhner's books, I highly recommend them - especially his new Lyme book that has pages of herb recommendations to treat a large number of different symptoms.
Hope you feel better soon!!