Hi,
Welcome to icliniq.com.
I appreciate you and have thoroughly worked through your case. I can well realize the sensitivity of the issues you are feeling right now. My discussion today will mostly comprise of reassurance and explaining the things in the best possible way for easy understanding. The issues you have described never warrants an emergency room visit for the suspicion of a heart attack. Rather, these fit more in the setting of anxiety and panic disorders. This is not due to the heart attack that you feel tightness in back after a workout. Many of my patients with the same issue got better once they started workout under the proper guidance of a gym instructor. The same is my suggestion for you. You will feel better in almost no time. You need to make sure that your diet is full of nutrients and plenty of fluids as this is a big issue in gym workouts when our muscles get less than required nutrients and fluids, they get stiffer. Muscles can work optimally if remain bathed in a healthy pool of nutrients, fluids and electrolytes. Your cardiologist has done a good job and the tests needed are all carried out previously. I am happy for you to know there was nothing. You are a lucky one to have a healthy heart muscles and blood vessels. You need to consult a psychiatrist to overcome the obsessions of getting fear of heart disease. This is manageable and psychiatrist is the trained personnel to treat such issues with success. You are not alone who has these kind of symptoms. A lot of females in this age group get the issues like this and is managed with success once we overcome the anxiety and panic of getting something wrong with our heart. You need to take care of your caffeine intake and cut it short with the passage of time. No junk and fried foods, caffeinated drinks and beverages with carbonated water, energy drinks, etc. Keep a balanced lifestyle with proper and hygienic sleep. If you need to get comments on the laboratory reports of your previous visits, you may upload them in a query to me. I will be happy to review and see what is going on in there. Will be happy to assist you. If not done previously, then I am interested in getting some of your laboratory tests done such as serum glucose and HbA1c levels, fasting serum lipid profile, thyroid profile and serum electrolytes. It is necessary to rule out the possibilities of some disorders that may contribute to symptoms and may cause heart issues in future. Revert back with the reports to a cardiologist online.