Bow legs in 17 months baby. Required?

Hi doctors, My son is 1year 5 months old 84cm 12.2kg active. He is having bow legs we have observed it from 2-3 months. When he started walking at 11 months till his 1 year 2 months he was walking straight. But from 1 year 3rd month it worsen. We have visited paediatric doc 20 days back, He gave uprise vit d3 weekly once, gemcol 5ml daily twice. 15 days back we've visited orthopaedic doc. He took an x ray but we couldn't hear him properly as he was wearing mask and sitting v far so sound was not reaching. He was not answering our questions properly. But he told us to continue the same medicine and vit c and iron syrup extra. My son always vomits when we give iron syrup to him. So please suggest is iron syrup required? Can we take it in different form. We have not given him outside milk or curd till he is 1 year 4 months. We gave him plenty of pulses , rice, apples, dry fruits. I have attached x ray. Please let me know steps to be taken.