Hello and welcome.
Thank you for your query.
I suspect that the child has failure to
thrive and associated vitamin D deficiency. With similar presentations in the clinic, I usually advise evaluation for underlying causes of failure to thrive like mal-absorption, disorders of the gastrointestinal tract like
celiac disease, kidney disorders, genetic-metabolic, endocrine (
hormonal) problems, immune system defects. In this situation, given the difficult family situation, poor intake of food and psychosocial stressors might be playing a role too. Other systemic causes will need evaluation depending on the examination findings.
In my opinion, the child would need blood tests like
complete blood count, complete metabolic profile to begin with and evaluation by your local
pediatrician. In the meanwhile, I would also suggest intake of balanced diet, exposure to the sun, calcium and vitamin D supplementation.
Hope this helps. Please do write to us if you have any further questions and I would be happy to answer.
Best wishes and regards.