Baby refuse bottle

My LO is currently 2 months old. Since birth, i have given her mixed milk (direct latch, EBM & formula). She has no problems drinking milk from the bottle until now. All of a sudden, she just outright refuse the bottle but she will drink if i direct latch. Should i bring my LO to see a PD? Is it a cause of concern? Should i wait till she is very hungry to bottle feed her as i will be returning back to work soon. This is super worrying.