Everyone good night) It's a month, started getting capricious in the e…

Everyone good night) It's a month, started getting capricious in the evenings, and sometimes during the day, it eats, then starts to get nervous at the end and greedily suck, but runs away with its claws. Not like colic, because it doesn't strain, maybe it's hot for him too, I don't know, when I pick it up, it will make an emetic reaction, calms down, can't sleep for a long time, tortures himself. What is this related to?