If people are in a certain physical state for a long time, they will also have psychological stereotypes, and once this stereotype is broken, even if it changes in a good direction, it will also produce psychological anxiety. This is a kind of psychological inertia, the reason is similar to that you suddenly come to a strange environment and suddenly can't adapt. This is a normal phenomenon, so don't worry too much, try not to entangle this kind of thing, and what to do will soon form a new psychological set.