At what age do we stop enjoying running? As children we run around freely, joyfully laughing, and genuinely enjoying it. When does that stop?
Try to remember that feeling of freedom and put your trainers on and walk out of the door, set yourself a small goal of run/walk between lamp posts, 10 mins is more than enough to start off with.
Slow it down. Another myth that surrounds running is that you must be fast to be a runner. No, you don't, in fact most runs should be run at a comfortable, talking pace; this is your pace. If you can't talk, slow it down even more, as long as one foot is off the ground at any one time you are running.
It's ok to walk, I am giving you permission to walk, everyone has to start somewhere, and walking is the right thing to when you first start running.
Breath through your mouth, it's bigger than your nose airways so get the air in and out through the bigger airway of the mouth.
Relax, most people are too busy thinking about what they are having for dinner and if anyone does shout anything, just ignore them. Hold your head up high, nobody knows if you've just finished a 20-mile run or a 10 min run/walk.