Ok so here is what happened. After many (expensive) tests, blood, electrocardiograms, etc. etc. it turns out that there is nothing physically wrong with my heart but that the palpitations and other abnormalities were stress/depression related. Probably not stress alone, and it was most likely related to my depression. It's weird because I thought I had gotten rid of it many months ago and I thought I was starting my new mentally healthy life.
Guess I was wrong! I have to start all over again because I stopped working out when I began feeling these crazy symptoms, which made me even more depressed, and then a vicious cycle started. It's uplifting to know that I am still physically healthy.
It's also amazing that each one of those symptoms were caused by my very own brain. Traitor!
I'll start posting again in a few weeks maybe. The reason I stopped posting is because I still wasn't feeling very well and all I did was lay on the bed like a sloth. I'm a bit more upbeat now but still not the same person.