My 14 week old has been inconsolable for an hour and a half for no apparent reason. He's seemed completely normal all day, eating, peeing, pooping, etc, but all of a sudden he is SO MAD. We've burped him a bunch, changed him, tried feeding, put him in a warm bath (which helped for a few minutes, but he started up again), helped him fart, bounced with him on the ball, rocked him, held him... my husband is strapping him into the car seat to take him for a drive. We never had this with our daughter and it's completely out of the blue for our son. Any other ideas of what might be happening and what we can do to stop it?

Took his temperature too, 99.4°F but he's also pretty hot from screaming for over an hour.