Gestational diabetes symptoms cannot be easily recognized with most believing that the hormones that develop makes it much difficult to get the insulin required. The first symptom is increased thirst and hunger, but you would only be losing weight and feeling continuously sick. In addition there could be need for frequent urination with a tendency for frequent infections of the bladder, vagina and skin. The vision could turn blurry and there could be increased fatigue with need for regular rest.
Tests done between the 24th to 28th weeks of pregnancy could show high sugar level that could create problems for the baby and mother. It is best to know the symptoms, but an expert opinion is absolutely necessary before coming to conclusions.