Hello everyone. The child at 1.5 years old stood up and walked for the…

Hello everyone. The child at 1.5 years old stood up and walked for the first time, calmly and confidently around the yard and fence. But on the next day and to this day (she is already 1.7 years old), she doesn't walk! She only holds onto her finger. We are going to see a neurologist tomorrow. Could you please tell me who else we can turn to? (If it matters, the child was born at 31 weeks).