My baby is crying

Hello all, my baby is crying, we thought she is hungry, but she doesn’t want milk (we fed her a little while ago). She is crying for no reason, we put her on bed, then she cries again. When we carry her, she will be calm for a while, and then start crying again (with mouth open like wanting to drink), but when we feed, she doesn’t want to suck it. Help 😭 we are so panic.