When you change your diet and clean things up the body will naturally start to detox. This could mean increased bowel movements, increased urination, nausea, headaches, etc. Everyone is different but give it a week or 2 and your body will adjust. Check out some of these tips to help speed up the detox process
There could also be certain foods that you are using that you may be allergic or sensitive to. Some common culprits include chocolate, citrus fruits, dairy, MSG, aged cheese, alcohol (especially red wine) and sugar substitutes (aspartame). Now on to what you can include in your NutriBlast that may help...fresh ginger and foods high in magnesium (pumpkin seeds, spinach, swiss chard, sesame seeds, sunflower seeds, cashews).
If you are looking for a replacement for pineapple you can try mango or papaya.