I just went for a walk and near the end of my walk I started to have heart pains. Felt like my heart was being squeezed about every three seconds. I went for a walk yesterday and I was fine. I was walking normally, strolling my daughter along. I just had a baby a few months ago and haven t really done serious cardio since, but I have one on many walks and even done some kick boxing. I am only 20 years old. Is this Angina? Could I have CAD? It is 4:30pm so I am not going to go see a doctor right away. Any advice?!Experience?!?! Never felt anything like this before! CAD I meant = coronary heart disease Also I do not smoke or drink alcohol. I eat healthy and am a little overweight from having a baby, but not obese.