How long till I notice die-off

Hi,
This is my first post. I see many people have many different symptoms. Mine are brain fog every day that has worsened over the years, weight gain in belly(not just bloating), toenail fungus(25 yrs), and my right elbow and ankle have thick darker skin. Also the soles of both feet have such thick yellowing skin that I don't feel a tack if I step on it. My belly looks as if I am pregnant for the last 5 yrs. I have gained 35-40 pounds which all came quickly just in the belly. My thyroid tested normal. I went on the Atkins diet 11 yr ago to lose a few post baby pounds and I lost well over 20lbs. Now the same diet does nothing at all. I follow it closely. Between the terrible brain fog and the weight gain, my self esteem is zero.
Two days ago I started taking extra virgin coconut oil(1-2tbls)3 times a day. Yesterday I started oregano oil, garlic, a product called Candida Cleanse which has grapefruit seed,Pau d'arco, Black-Walnut and many more. I also started the bentonite/psylluim cleanse. I have been on a good probiotic for a least 8 months. When would I expect die-off? Can someone explain what I should experience? Being that I have bad brain fog all the time, I can't use that as an indicator. That is by far the first and worst symptom I want to cure. Dr.s just say "you must be depressed" which is
not the case at all. One also said I must have ADD but that wasn't the case either. I didn't have the brainfog as a teen but I did have the toenail fungus and thick sole back then. I am now 48. Sorry this is so long but it is my first post ever. Thanks for any info you can offer.