Why do I feel like I'm dying every time I go for a run or jog?

Okay, well how do you breather? If you inhale and exhale through your mouth when you are breathing fast, then you are inhaling the same CO2 you just released, and not getting too much oxygen. So, you are running out of breath because your not getting enough. Also, since you say you don’t do much cardio, you are not prepared so much for a run. Try power walking or just jogging every morning and start increasing your workout by running/jogging faster and/or just increasing the time. So that’s basically all I know.

I should note that timing yourself is so you know when you’re ready to do a longer course :)

Thank so much :) Also I live in the hills, and I think that makes me tired, like really tired fast. do you think I should start on flat surfaces?

Ok thanks for your advice :)

Welcome, and maybe you should start on flat surfaces. Inclined slopes require more force output, and you drain your energy a bit faster. Kind of like running up some steps.

How long have you been doing this? Do you jog infrequently or has this been happening many times. Like Miguel said, it takes time for your body to become accustomed to long jogs…you have to build up your endurance and I have to stress this, eat the right foods. What you eat has a lot to do if you keep hitting wall for lack of energy…this I speak from experience that your body when starved for fuel after a while will attack muscle and can cause injuries over time. Don’t get frustrated like some do, as you gradually increase your distance you will see changes; you speed up, less tired or fatigued, and there is this thing runners get after a while where you can jog for a long time and not get tired…something like a “runners high”