Heart issues

So the last couple of years (since I was pregnant with my youngest) I've had issues with my heart (heart palpitations, racing heart rate, chest pain) and I had a cardiologist who did nothing but one EKG and blood test and told me to just lose weight so I stopped going to him. Well I been dealing with heart palpitations almost daily now and got a new PCP so I went to him and I told him everything that's been going on and he did a EKG and it came back abnormal (will insert photo of test results). He sent me a referral to a cardiologist but unfortunately they don't have a open date til March 21st and now I'm scared bc that's a long wait. I plan on eating healthier bc I will be honest I really don't but this is a huge wakeup call for me. I do have heart issues in my family. My uncle has had a pacemaker for about 30 years and my mom has heart problems. Should I be worried about this? Also what's the best health plan for me? I need advice bc I'm freaking out 😩