Paris Hilton not eating

Paris Hilton is hugely distressed about her impending jail time reports PEOPLE.

"Paris hasn't been eating at all and her parents and friends are beyond worried about her," the source says. "She breaks down crying a lot because she just can't deal with the reality and the pressure of everything that is happening."

"She's been having such a tough time with it all despite her going out with friends and going shopping,"

"She just does that to keep her mind of things and to try and stay as normal as possible right now."

"Her biggest support has been her family – her parents without a doubt," says the source. "She talks to them a million times a day and they are doing everything they can to make sure that she comes out of this okay."

Images SplashNEWS

"As for her friends, that's been another spot of stress for Paris," the source says. "She really can't take how most people around her have scattered and distanced themselves."

Hilton, 26, was sentenced to 45 days in jail for violating probation by driving with a suspended license, and a police rep recently said she will serve at least 23 days of that sentence.

Meanwhile, Paris Hilton has taken to painting pottery?

TMZ cameras caught the jail-bound heiress with her sister Nicky at Color Me Mine in Beverly Hills yesterday, posing for photos while painting a giant ceramic teddy bear and a tiny skull.