Being the lone man in a household full of independent, successful and famous women is taking it's toll on Rob Kardashian.
"He's looking sad and 'depressed' big time right now," a pal close to Rob told RadarOnline.com.
"He's not exactly the famous one in his family and he sort of feels like he's nobody except the Kardashian name."
"He takes Xanax and has been drinking really heavily," the pal said.
"Not to mention he's eating like crazy!"
Rob addressed his new larger than life physique on Tuesday.
"So i found out i was trending for being fat… thank you all it really made my day :)" he tweeted, undercutting reports he’d sought help to shed his girth.
"And to the blogs saying i went to fat camp or rehab LOL then why am i still fat u fools?? y’all must have run out of real news."
Regardless of Rob's jokes, his pals tell RadarOnline.com they're worried about his depression.
"He really hasn't found himself yet and it's pretty sad," the source added.
"First, i don’t believe in rehab or therapy or anything of that sort and second I’m a grown man and will work on myself when i choose," Rob also tweeted.
"I’m aware that I’m fat that def aint a surprise to me lol and my only therapy will be in the gym anyways."
Calls to Rob's team for comment went unreturned.