Thanks for all the concern everyone! Really great to have a bunch of support. Let me paraphrase some of my story since it was so long lol. I've been to the ER twice and both times they said nothing was wrong with my heart, so that makes me a TON more comfortable. Although I also know that I need to follow up with my doctor at the VA because there COULD be something that the ER missed. I'm definitely not thinking it's anything related to my heart anymore. I'm actually starting to think it's a respiratory virus and this is why.
As of right now, I have very little pain in my chest, however, it feels like the pain is moving to the middle of my back (clear sign of something respiratory). Also now i'm having "flu-like" symptoms. You know how when you have the flu you're like constantly cold and have those full body aches? That's what i'm experiencing now so i'm pretty sure it's some type of virus, although i'm not a doctor so I can't diagnose anything lol. I will be calling my doctor tomorrow morning though and making an appointment. I really want to thank everyone for all the support and good wishes though, never expected that from being a noob on here lol!
I also will be taking all of your suggestions at heart. I will be dropping my nicotine level. I only smoked about 7-10 cigarettes a day so i'm guessing 24mg nicotine is way too high! I'll be changing that. I'll also be looking into getting a more quality made vape pen. I also should probably add that I wasn't vaping like I should. Instead I was vaping pretty much constantly all day. There would only be maybe 30 minutes out of the day that I wasn't vaping, so yeah too much nicotine for way too long, certainly spells disaster lol. So I'll be stopping that as well. Thanks again though everyone and hopefully I can update this thread in a couple days saying that I'm perfectly fine with no symptoms!