Recently i started taking an unproscribed product, a powder added to water which is bscially just a fibre drink. I started taking it as instructed and felt fine for the first few days. But then i started to feel very ill every morning, and i believe its because of the product. it says you should be fine after a few days but the opposites happened with me, should i carry on taking it or stop? i stopped taking it about 2-3 days ago and im still feeling ill. i have exams next week and i really dont want to be ill for them.