Milk strikes

Hi mummies, my LO is 12 weeks and 5 days. He usually drinks around 780-830ml per day (exclude latching) The past 2 days he keep refuse to drink or latch and total only drink around 400-480ml per day (exclude latching). Initially I thought maybe tummy got wind or uncomfortable so after diaper change I always rub a bit of ru yi oil but seems no diff. I also play more with him in the hope that he will wanna drink more but seems no diff also I worried he didn’t drink enough but so far wet diapers about the same with before tho. Any of you mummies experience this also?