In my college days, I experienced a strange occurence with my classmates.
I was a business major. One day the professor pissed me off. I was younger and much stronger back in the day. I felt a surge of energy within me. But I didn't assail the professor. Although I did want to. However, this energy was so intense, that the students behind me were feeling it. I could hear them say "wtf". And it kept rising and rising. I could see that my professor was getting a little nervous. Fortunately, we did have a chat at the end of class and we resolved the matter. The following week one of students told me not to kill the teacher.

This wasn't the first time. Years ago, in South America, I visited my relatives at their home. For some reason, I got angry and raised my energy as high as i could. The cat that was next to me freaked out and jumped away to higher ground then started to sleep again.

The second time it happened was with my dog. I got angry and raised it high and then he barked at me. He never barked at me until then.

But some people can sense it and feel it more than others. At my current job, there is a squirrelly little guy that is a afraid of me. But one day I decided to raise my energy really high. I was analyzing his reaction to it. He started to get more nervous and his walking speed increased.

I can control it better now. But I do not know what it can used for. Ok i lied i do know. It is one of the reasons why i am ridiculously strong without training. With this energy, I can go beyond my limit. It's like kaio ken from dbz and 8 gates jutsu from naruto. The weakness is that it takes too long to manifest. In a real fight, no one is going to give me the opportunity to power up. So the solution is either learn to do it faster or don't use it all. And the risk of using is similar to those animes/manga. You could really hurt yourself doing it. In my younger days, I trained with it. I could use it for 30 minutes. But the price for power came at a cost. Why do u think that I have a heart condition? Exactly. The human body is not designed for that much punishment. So you're probably thinking wow this guy is an idiot. And I would laugh at you so hard for thinking that way. Because like many things, I found the cure. But if you found the cure, then why haven't you used it?
Because the way that I am now is easy to control.