Help !! What could be wrong?

L 👶🏼🤎✨

Anyone else has/had a 12 week that is fussy all the time? He doesn’t stop crying for hours and therefore will not nap. He cries as if something is wrong and no matter what I do he doesnt stop. The only thing I could think of is him being quite gassy(farts A LOT) but I gave him gas relief drops and he was fine for a total of 1 minute and then started crying again. ???? 😩 He is breastfed btw!!