Sys = +/- 110, Dia = +/- 65 but pulse is usually +/-100. Please why is the pulse always very high ?

You are healthy. Your blood pressure is good and so is your pulse. A normal pulse rate is 60 to 100 beats per minute. Sometimes it can be high if you are under stress, exercising, non athletic, you are also very tall so your heart needs to beat harder to get the blood pumped throughout your body. I am a student nurse and if I saw these numbers I wouldn't be worried and wouldn't think twice :)