I haven't done any cardio since I left college at 18 and then suffered depression. I am now 21. Yesterday I went out for a run, did about 30 minutes but with a fair few stops and some walking periods. I got a chest pain fairly early on, infact I had only just gone around the corner lol. I kept going anyway, the pain decreased slightly, maybe I got used to it. At one point I felt like I might throw up. When I came back I felt slight asthma as I rested. Today, despite my legs being in pain from last night I went out for a run again. I couldnt do much this time, I probably did 15 minutes with a lot of walking. My calves are now completely damaged lol. But again more chest pains. God I am unfit. Tomorrow night I am going to do some kind of cardio in my room. Although I am not sure what is possible. That way I can stop and start accordingly without the shame of being seen stopping lol. Maybe skip, without the skipping rope lol. Does anyone know if the chest pains will go away, what to do when I get them, how long will it take to get fit enough, how much cardio a day do i need to do. What cardio can I do when my legs are tired but dont have a gym.