Robert Gibbs, a nearly 700-pound man from Livermore, Calif., uploaded a YouTube video on March 1, a day before his 23rd birthday, asking for help to lose weight so he can watch his niece and nephew grow up. The video has since gone viral, with more than 921,000 views in just four days and has resulted in a call from a representative for a celebrity personal trainer.

I'm making this video to try and get it to go viral and get somebody's help that knows what they're doing and can help, Gibbs said. For everybody that watches this please post this, share this video as much as possible. I'm just trying to get some help from somebody ... nutritionist, personal trainer, Dr. Phil, Biggest Loser. ... Get this video to go viral. ... Eventually someone will see it and maybe then I can get some help. I don't know what else to do.

Gibbs said it was his last hope to post the video. Gibbs added that he is really scared he will not be able to watch his niece and nephew grow up or have a family of his own.

In an interview with CBS San Francisco on March 2, Gibbs said he spends most of his time at home watching TV. Gibbs has struggled with his weight since 4 years old and told the TV station that he feels like a prisoner in his own body.

I have to slide forward to get off this couch, Gibbs said. I'm just trapped, and there's no way out.

Gibbs has been hospitalized twice.

But things started looking up for Gibbs since he posted the video. He received a phone call from a producer for celebrity personal trainer Chris Powell.

I would love his help, he works miracles, Gibbs told CBS San Francisco. I'm getting the exposure I needed. I better start getting ready for the tornado that's about to become my life. I guess it is a good birthday for me.

Gibbs has received positive feedback from those who viewed his video on YouTube.

Hang in their Robert. Good things are coming because of? your courage in posting this video. Best of luck, one commenter wrote.

Good luck? rob! This vid has tons of views, I'm sure someone will be able to help you, another user wrote. DONT GIVE UP! You have a lot of people rooting for you.

Watch Gibbs' YouTube video plea for help below: