My wife is 31 weeks preganant, her haemoblogin level is 9.5 ( should be 11.5) doctor advised her to take Globax XT capsules, unfortunately if she takes these tablets she gets highly uncomfortable like she becomes very tired, complains of shooter pain in abdomen area, vomitting sensations, giddiness is there any other way we can increase this haemoglobin level, is iron infusion safer