Is this a diet or exercise issue?

[ubersonic]

Hey, before I go off in the wrong direction I was just after some opinions on this, I'm almost 29 years old and basically haven't exercised properly in almost a decade, in fact for the past 7 years most of my exercise has consisted of swivelling an office chair lol. Having said that, I have never really needed to exercise to stay in shape and always eaten whatever I wanted but I guess I should start paying attention to one of both of these areas lol, in school/college nobody believed I never worked out and just ate junk because I was always "in shape" thought no effort of my own so I have no real idea how to get in shape.

The only real issue is my six pack seems to have congealed into a vat over the last decade, I wouldn't say im fat, its just, its all one area, I can see a faint outline by tensing my abs. I haven't put on any weight over the years, in fact my weights been static I was 16 and my quads/biceps are unaffected. I have always been very naturally fit (I.E right now I know I could go for my first long distance run of the century and I know I would have no problem doing it or overtaking other older joggers who run the circuit every week) and I have never eaten healthily ever which is why im a bit perplexed to how to go about fixing this, any ideas would help please.

 

[ubersonic]

Go down the gym and watch the biggest guy in there pump iron. It sounds like you'll gain without having to even lift.

Other than the trollin' I have nothing serious to add other than join a gym and see how fit you actually are?

Wasn't really looking to spend money but I guess I can give it a try

person does zero exercise for a decade and can outrun experienced runners?

you should take up smoking and binge drinking imo, show them who's boss and that exercise is a waste of time.

I didn't mean like professional marathon runners, just the generic middle aged person who goes out jogging in spandex every night. I don't know why but I have always been very naturally fit, I.E the only thing I have done since around 2000 that I would call strenuous was in 2004, the college I was attending entered an army challenge thing hosted by another college which basically consisted of a load of army people doing different mini events and each college team got a score for event, anyway one of the mini events was a sit up type thing where they called out positions and you had to rise/lower to that position, I managed to outlast everyone on my team, everyone on the opposing teams, and only stopped when the instructor (who was taking part) decided to end it.

At the time I remember other people being amazed that I did that and then went straight into the assault course event that was next (some of them were pretty much dying on the floor :S) but I didn't think anything of it as I was just used to being like that. Everyone who took part that day got a special event T-shirt but a select few including myself were also given the same type of shirt the army personnel wore for the event as a reward (still wear mine sometimes with pride lol), was a cool day and looking back I guess I was kinda "odd" athletically speaking, actually now I look back to school and stuff I would defiantly say that, its just something that I never thought about at the time.

As for cigarettes/alcohol I never touch either.

*EDIT*

I just wan't to clarify, I don't feel unfit/unhealthy or anything, its just I can't see my six pack (can see the outline and feel it if I tense up) and I'm not overweight.