The area which I have highlighted in photo at that location my chest got pressure and sometimes it pain. Pain less but I feel pressure there it's not exactly in middle but left chest where I have done white line there I feel pressure on my chest . Before some days I was having chest pain but now chest pain is less but I feel pressure when I lie down I feel lot of discomfort. While walking it's goes away . No pain while breathing or doing exercises. When I lie down I feel pressure in middle chest left side why so ??? Before some days I was having sinus tachycardia with 115 BPM in my first ecg and 2nd ecg 77. BPM And blood pressure 133/83mg