I’ve got a question for any doctor who might be hanging out here. I was hoping someone could take a look at this ECG and give me their take on my situation. Basically, for about a week now, I’ve been dealing with constant pain just to the left of my breastbone—right where the heart is. The ache travels up toward my shoulder and hits that spot between my spine and my shoulder blade. It doesn't matter how I sit or stand; the discomfort is always there. I also get palpitations every now and then, and my circulation feels totally off—my hands and feet are constantly freezing.🙂Since I’m a total panic monster😁, I went ahead and paid out of pocket for an Ultrasound heart, which came back totally fine. My doctor is telling me it’s probably just rheumatic issues since the area is tender to the touch. He ran an ECG, but honestly, he didn't even really look at it—just handed it over. My blood pressure usually sits somewhere between 100/60 and 120/80, so that seems okay, and my pulse stays between 60 and 70 bpm. Also, they occasionally find respiratory sinus arrhythmia on my ECG, though they told me that’s actually a good thing and perfectly normal. Last week, I actually ended up in the hospital because an MRI showed two demyelinating lesions. I originally had the MRI done because of these nagging headaches in my neck and the base of my skull (there was some suspicion of MS since my aunt has it), but while I was inpatient, they did another MRI and those lesions were gone. The verdict was that the headaches were just a byproduct of a super stressful period in my life. My blood work was mostly fine, except I noticed that during my last three tests over the past month, my creatine kinase levels have been creeping up—it was 70, then 80, and the most recent was 104. So, my big question is: is it possible that stress or anxiety is driving all of this? Because that theory is starting to sound more and more plausible to me... I'll attach a photo of my discharge papers so you can see all the results from the hospital stay.
ecg scan:

discharge papers

Sorry for the novel! Thanks in advance for any help.