Take energy dense foods...foods high in carbs n protein. To atleast two bananas everyday, full cream milk, add some high protein supplements in milk. Add butter or ghee in ur dals, chapatis, bread etc.
Simple sugars like jam, jellies, glucose,
sugar, gud etc. Gud channa is a good snacking option. nuts n dried fruits can be munched in-between meals.
Next Steps
do some sort of physical activity daily be it yoga, jogging brisk walking or gymming.
Health Tips
get ur
thyroid test done.