#AskTheExpert my son's TST test was positive but chest x ray was clear, doctor had advised this test as he is not gaining much weight, he is 3.5 years old, his weight is 12.6 kg and height is 96 cm, speech is not clear yet he talks all the time, is he underweight, his tb test positive could be because of BCG vaccination or Tb Infection? what should be the average weight and height for boy of 3.5 years age ? we are vegetarian, he even does not gulp or drink milk, even with bournvita or pediasure ? what should I give him to eat ? please guide 🙏