Thank you both for replying. I phoned doc last evening and she said to stop iron as it may be too strong and to try a milder one in a few days. The iron I was taking is ferrograd but on reading box it has 325 mg ferrous sulphate and 500 mg of vitamin c, which seems a lot. I will ask my local chemist which one she can recommend as there is no way I can carry on the way I feel. My stomach feels like it's on fire and I'm still dizzy, hope it eases soon x