I scored for Plan P and have IBS symptoms and poor digestion, but have no official diagnosis. Is plan P fine for me to go with? I take 2 supplements, both organic— shizandra and ling zhi/ reishi. Should I stop taking them while going through the program?

Plan P should be targeted specifically for the root of what is causing your IBS symptoms, so you are on the right track. You can continue shizandra and reishi while on this plan. However keep in mind that you might want to lower the reishi dose, because there will be some in your supplements. It's an amazing mushroom. They are using it for cancer treatment in Japan officially now!