The first technique is prevention of distraction. I remember at the age of 15, I got my first computer. I was so fascinating for it, I spent so much time on my computer until my stomach growls, my eye hurts, and my finger numbs.
This is a part of the speech I will be given. Is it grammatical to use present tense here: "my stomach growls, my eye hurts, and my finger numbs", so that it sounds more vivid?