Update: Jayden James Doing Fine, Suffered Allergic Reaction

Pictures by: Splash News

Update: Little Jayden James is doing fine according to reports and did not suffer a siezure but a reaction due to an unknown allergy.

Jayden was taken to the hospital after suffering "a terrible allergic reaction. He had hives, was itchy and irritable," according to the source, who says that Britney Spears and her mother, Lynne, spent the night at the hospital with Jayden.

Britney Spears has rushed her two-year-old son to the hospital after he suffered a suspected seizure during a long-awaited family trip to her hometown. Jayden James was raced to the emergency ward after lapsing into a "vague and unresponsive" state.

It's believed the toddler fell ill yesterday afternoon at the family home in Kentwood, Louisiana. The entire Spears clan made the 25-mile dash to Southwest Mississippi Regional Medical Center, where doctors were unable to pinpoint the problem straight away and kept the toddler in for overnight observation. Distraught Britney refused to leave his side and asked for a bed next to him in the ward.

It's the first time Britney has been allowed to leave California with her sons Sean Preston since their dad Kevin Federline was given full custody in July. She flew them into Louisiana on a private jet with her dad Jamie Speas on Friday, the morning after her surprise appearance on stage with Madonna. The special week-long visit was to grab some family time ahead of Britney's forthcoming promotional tour of her new album Circus.

Sources say chaos erupted when Jayden suffered a suspected seizure out of the blue at about 3pm Sunday. "One minute Britney and her sons were relaxing and enjoying their first visit to Kentwood in months, and the next minute Jayden had fallen ill," said a source. "He was vague and unresponsive so Britney dialed an ambulance. "But she was told it would take half an hour to arrive."

Minutes later, two cars tore out of the Spears' "Serenity" residence. When the convoy reached the motorway, Jamie-Lynn reportedly thwarted following photographers by refusing to let them pass. She drove slowly alongside another vehicle to keep them back while her sister accelerated away. When snappers arrived at the hospital, which is now being manned by police, Britney and her son had already dashed inside. "Jayden James had to be kept in hospital overnight for observations," said the source.