Hi. When I was 15, I fell ill abroad. I was given antibiotics bur never told what I had. After recovering I still had symptoms. They sent me for check ups and they did some kind of ultrasound? on my heart. They found a grade 1 murmur and mild regurgitation. My pulse was also fast at about 140 resting. My doctor lost these reports and then said this was due to stress. Is this likely?
I'm almost 20 now. I'm feeling increasingly tired. Often when I stand, I feel faint and the more active I am, the worse I feel. I had my BP taken and its 96/74 (lower than I remember). My pulse is better at 127 resting. I've got a salty diet and I've cut out caffeine. I'm not overweight, my BMI is 19.4. Could this be more than stress?