Does an ECG reading of sinus rhythm and inappropriate T wave indicate a cardiac disorder?

Hello doctor,

What does an ECG reading of sinus rhythm and inappropriate T wave mean? Four weeks ago, I went to the emergency room for inappropriate sinus tachycardia from drinking too much green tea. I have been taking it easy over the past few weeks, but I had to return to the emergency room yesterday due to slight chest discomfort. They noticed that my blood pressure was abnormally high, 165/114 mm Hg, and normally it is in the 120/78 mm Hg range, which really surprised me. They gave me Amlodipine for my blood pressure and sent me home. Blood work came back with no trace of a cardiac event, no stroke, or blood clots. From time to time, I still have the sensation in my chest. Can this abnormal sinus rhythm T wave lead to a heart arrhythmia or cardiac event? I am really worried, and my anxiety levels have been through the roof. I am 37 years old and currently weigh 280 pounds with no history of high blood pressure, diabetes, no drugs or alcohol usage. The doctors conducted an x-ray of the chest, single portable magnesium, CK/W reflex high sensitive troponin I, comprehensive metabolic panel, CBC, ECG 12 lead, D-dimer, quantitative thyroid panel with TSH urinalysis reflex with culture tests. Any insight would be greatly appreciated.

Hello doctor,

I actually do not have the pictures of my ECG from the hospital. They do have me scheduled for a Holter monitor test on the 28th of this month and a 2D Echocardiograph on the 29th. The hospital said that my test results do not indicate any coronary artery deterioration. Those test results are attached to this message. In regards to weight and exercise, I was actually 40 lbs (18 kilograms) heavier last year. I have been eating healthier and working out several times per week. In regards to vitamins, I was taking 3 to 4 cups of green tea daily, 4000 IU Vitamin D3 daily, fish oil 1200 mg, flaxseed oil 1000 mg, Tumeric, Zinc 50 mg, Magnesium 500 mg (started that a week before my first hospital visit). I have stopped all vitamins since this happened just to make sure that none of these caused the initial sinus tachycardia. Everything was looking good up until a few days ago. I am not sure if I pushed myself too hard at my gym, but since Wednesday, I have had chest discomfort and a feeling in my left arm as if a blood cuff is being squeezed. It does not happen all the time, just intermittent. And my chest feels like there is weight sitting there. The hospital could not find any atrial fibrillation but I am really worried that I have that condition.