I have several health conditions I'd like to "treat" with herbal tea. However, I can't possibly in one day drink all the kinds of teas recommended. How is the effect of tea affected by mixing several remedy tea bags together in one cup, ex. peppermint for stomach,sage for excessive perspiration,and white tea for weight loss? Also, once the tea is brewed how is it affected by adding ice to cool it? I prefer cold to hot drinks.