How to improve energy levels and treat hair fall, dandruff, and allergies in a 21-year-old? - #54910

Doctor, I am 21 years old. My height is 5 feet 6 inches and my weight is 51 kg. I have a skinny body type and low energy levels. I often feel tired and low in stamina. I also have skin-related allergy issues. I am facing significant hair fall. I also have dandruff on my scalp, eyebrows/eyelids, and sometimes in my ears as well. My eyes also feel itchy at times. I often feel more sensitive to cold than others. This problem started around 3 years ago after I had a fever due to cold exposure. Since then, these issues have been ongoing. Along with this, I also have recurrent allergy-like symptoms such as sneezing, watery nose, and watery eyes. I want a proper solution for all these issues. I want to improve my overall health, increase my weight and strength, improve my energy levels, and be able to focus better on my studies. I also want permanent relief from dandruff, hair fall, and allergy symptoms.