Beginner's Running Plan - This plan pretty much details what I would advise people who find it difficult to start running after a long "off-period". Do short intervals or walking and running or jogging.
Do something about it starting today! (and do yourself a favor, don't go on a fad diet just eat fresh fruits and veggies and no processed foods) to achieve this look you must use weights. You can start out with body weight at first if you need it.