Aiyoo, I feel you! A few of us actually kena the same thing with iberet, memang some mums boleh tolerate tapi some really lawan their stomach je. Since you dah experience this before and now it's happening again, best la you balik contact your doc and tell him it's really not working for you, pastu minta dia suggest alternatives like minum iron at different times, with food, or even switch to another brand altogether, ada certain iron supplements yang gentler on the stomach. Your HB memang kena raise but kena comfortable jugak, so don't force it kalau really making you miserable!