Resting heart rate over 120, skipped beats, stuggles breathing, and tired

[Yoshino]

My heart has always been faster, than most, but recently it's been in the hundreds at resting. Lowest it goes is at 96-83.
But that hasn't happened in a while.  I've also always had difficulties breathing, but they got worse. It feels like Im oxygen starved. Then sometimes when I can't get any air, I keep trying and trying and then I end up Getting lightheaded and dizzy.
Also it's been skipping beats
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Also lately, I've been so drained and tired and hungry. And all I want to do is sleep and yeah that it. Can't walk up a flight of stairs without feeling tired and out of breath. And it gets worse because I'm always running around and on my feet.

[Yoshino]

When I was a young child, my hearts always been 100+
And I've always had difficulties breathing. However, they found nothing wrong. They had me in this machine, the nebulizer. And i'm not sure if it worked.
A year ago, it started getting worse. My breathing and my heart goes faster. Today, it went to 164. I realized that it beats faster, and harder, and skips beats. It used to be a steady pace, now its a weird rhythm.

[updownleftright]

What your describing could be caused by a number of things. It certainly could be heart related, but that would be pretty rare is someone your age. I experienced something similar three years ago and it ended up being caused by low potassium and iron levels, which while better that a heart issue can also be very serious if neglected for long enough. I had been stressed and really not watching what I was eating, but started feeling better right away once I adjusted my diet. What you're experiencing could also be caused by other deficiencies, but this is no place to get a proper diagnoses. You really should go see a doctor and get this straightened out, and sooner is better than later.