Not entirely qi deficiency. If you sit up straight for a long time and feel very tired, it should be waist fatigue. At the same time, I feel easy to gasp, showing a little qi deficiency, but still kidney deficiency! You can usually eat more foods that nourish kidney yin, such as yam and cashew nuts. You can also eat some Chinese patent medicines for tonifying kidney and benefiting qi, such as Bushen Yiqi Pill and Liuwei Dihuang Pill. At the same time hope to strengthen physical exercise. Whether it is food supplement or medicine supplement, it is better to strengthen exercise.