hello doctor... please suggest me some supplements for weight gain and weakness.. I'm 48 kg on 5 ft 4 inch

A. First of all have you lost weight in a short duration and weakness and fatigue can due to nutritional deficiency so first of all include protein in all your meals and have paneer thrice in a week and in snacking have toasted chana and makhana and start taking a multivitamin like Centrum for women and get your Hb level checked and even Vitamin D level