Theres lots but the main ones are diarrhoea and or constipation, shaky hands and legs, dizzyness, headaches, feeling sick, either freezing cold or burning up! Theres lots more but it generally makes me feel rotten put that with all my iron problems sometimes i have to force myself to get out of bed. But hey ho it flares up and then they get it back to normal snd im ok for a few months and then i start all over again, and so iv been told thats how it will be for the rest of my life, sometimes i cope with it and sometimes i feel sorry for myself lol!!! Xxx