Hi, and welcome. How big is your son and is he just three months old or closer to four months? *most* three month old babies can go three hours between feeds. It's possible that if his naps are short, his tired and hungry cues may be looking similar and confusing you. Does that mark sense? I've had to google a tick and play to see what you mean. Do you rock him the whole time? Where does he sleep at night? Also could you post what your day looks like, in EAS format eg
Wake up 7 am
E bf 7 am
A awake time
S sleep 8.30-9 am
... All the way to bedtime. That would be very helpful.