Professor Green feels ''like s**t''.

The 33-year-old rap star has discussed his not-so-perfect life in an emotional post on Instagram, in which he admits his five-hour hernia operation in April - which led to him developing pneumonia, distension and a partially collapsed lung - has caused him to feel very low.

In a lengthy post accompanied by a topless photograph of himself, the musician explained: ''There's no after pic yet, this is the beginning of the journey. People are shlags and only post a view into their (often unrealistic) 'perfect world'.

''I've been a shlag to all things bad; a shlag to my depression, a shlag to drink, a shlag to the sesh, a shlag to not creating, a shlag to distracting myself from the one thing that truly makes me happy - music. I've been a shlag to EVERYTHING NEGATIVE. (sic)''

The London-born star - whose divorce from reality TV beauty Millie Mackintosh was finalised last year - admitted to being in a negative frame of mind at the moment.

But Pro insisted he's determined to turn things around and rise to the top of the music industry once again.

The 'Read All About It' hitmaker continued: ''After surgery going wrong this year it slumped me, I look and feel like s**t. If I still look like this in 6 months then I've failed. If there hasn't been a whole load of new music then I've failed.

''No one is going to sort me out for me, so I figured it's probably time I did it for myself. I can't have a dad bod without bloody having a kid first! And I can't leave music behind knowing I haven't peaked yet... the stuff I've started is the best yet - time to get it finished. Cheers for staying with me and being such loyal fans and friends, bless (sic)''