If you are having die off reactions that badly you should definitely consult with your health practitioner about cutting back the doses until the body has a chance to recuperate. When someone is healing from Candida the body tends to let loose a lot of old toxins that were in storage. The are a limited number of ways for those loosed toxins to get out of the body so if you over do it you let loose more toxins than the body can keep up with and get to feeling very sick. My advice is to cut back, but don't stop your doses temporarily and increase water intake until symptoms subside. Once the die off symptoms go away you can start slowly, and I stress that word, slowly begin increasing your doses again.
Also, do not let yourself get constipated or it will contribute to die off symtpoms. A wonderful herbal for that is called Experience and it's by the Awareness Corporation. It is very gentle on the colon, but very effective. It will probably only take one capsule. You may just have to do a general search on yahoo.com to find a distributor.