That is 100% healthy. You’re part of a strong club of people who work it out physically actually - Eric @Dazercat for example did a lot of power walks in his early days, listening to angry music (Tell Us Something You Did To Stay SOBER Today! - #40 by Dazercat); @Yoda-Stevie started martial arts training and now he’s a black belt and teaches his own classes (How do you cope? - #16 by Yoda-Stevie); there’s all kinds of other people here who’ve taken that raw energy they discover when they’re getting healthy (sober & clear), and they channel it into building something.
Energy is powerful. Energy is what you discover when you get clear - when you stop poisoning and numbing yourself with your addiction. Energy can be scary and at first it feels overwhelming (sort of like a wild horse), but it can be tamed and harnessed (also like a horse), and when you do that you can use that power to get where you want to go.
You matter and you are 100% capable of this. Don’t give up; use this time to dig deep, look yourself in the mirror, and say, “Today I’m not giving in. I’m not worrying about tomorrow, I’m not stuck on the past; I’m living today, and today I’m going to focus on getting what I need and doing what I need to do, to be the person I want to be.”
You can do this Katy 
