The sexy singer/mama is said to be losing clumps of her hair.
A source told Britain's Daily Star newspaper: "It looks like the poor poppet is suffering from stress-related alopecia."
The source added: "The real cause of her thinning hair is her constant fretting about getting slim and developing a new look for her return to pop-land."
It's probably not the only thing she is worrying about her but maybe about being pregnant again, here you can see how bad off Britney really is in Hawaii.
