Lose weight like this. I was in good health, and then I lost weight again and again. Now my spleen and stomach are not good, and I often have diarrhea. Chinese medicine says my spleen is not good. I think you are about the same as me. As for dizziness when standing up, there may be hypoglycemia or orthostatic hypotension, so you will know the examination. Normal people sit for a long time and suddenly stand up and faint.

Self-regulation is the only way now. Adjust the diet structure, regulate the spleen and stomach, and exercise properly.