Kate Middleton having a break-down?

Kate Middleton’s nearest and dearest are worried she’s making herself sick as she gears up for her wedding.

The busty brunette will marry Britain’s Prince William on April 29, and sources have revealed that Kate’s under strict instructions to watch her health to make sure she is in top form for her big day.

“Kate is under so much pressure and is so busy preparing for the wedding that she and everyone around her is worried she will burn out before her big day,” a source said.

“The last thing she wants is to be ill for the biggest moment in her life so she is making sure she is eating plenty of fruit and vegetables and drinking fruit juice with water as well as trying to take some time out to relax each day in order to keep her immune system and energy levels up.”