The candida was most likely there prior to the the pregnancy. The pregnancy can cause an immune system shift towards one that would favor further growth or symptomatic expression of fungal candida. Allergies are more commonly associated with the Th2 immune system dominance found with pregnancies and fungal candida.
Some of your symptoms are probably associated with blood sugar imbalances. Following the Blood Sugar Protocol can help with that.
Other symptoms may be related to chronic inflammation of the nervous system as a part of previous antibiotic use.
I would advise the Candida Plan. Breast feeding is okay with the Plan.