Could Chest Discomfort And Body Numbness Be Due To Heart Problem?

Hi, I need to know if I might have a heart problem. I'm just 19 with mild asthma. Before, every time my husband and I have an argument, I would just cry, breathe deeply and my chest would hurt a little because I'm having a hard time breathing. Which always happens to me and I'm OK with that. But lately, when we argue, I've noticed that once I start breathing heavily, my whole body starts to numb, I can see my veins real clearly on my hands and thighs, some of my joints start to harden, and my whole body aches. I start punching walls so that I can get my hands to start feelings something, but still nothing. I just wait it out. But I can't bear the pain. I thought that once I go numb, I won't feel a thing, when actually, the pain is unbearable. Please let me know if any of you guys know what this may be.