My 2 n half month boy who doesn't cry normally was cranky today in the evening. He was feeding well but suddenly after his 9 o clk feed spit some curdled milk ( around 5 ml of milk). He is on bm+ff. He takes 15 mnts from my breast and then takes 60ml of formula every 2 and half hours. He usually passes gas daily but today he cried for half an hr and kept passing gas. He weighs around 5 kgs. I feel he passed lesser urine than usual. Then he slept off and took the next feeding(only bm). But feels a little uncomfortable. Is it normal? Should I meet the doctor? I gave him colic aid drops before last feed.