That is good that you are doing something healthy with the energy you have because of the emotions. When I was in college and started seeing my first T, I did the same thing. Ended up with 16 inch biceps!!

(( I am a petite female at only 5ft)) Would spend hours in the gymn and turned into solid muscle.
But it was avoidance still. I had to go through the trauma healing many years later. ((last year)). And it hurt. This time I didn't escape though. I had to learn how to be with those hard feelings and process through them.
My point is just to be careful and be understanding of what you are doing and why you are doing it. If you are working out to avoid the emtoins and the pain that goes along with them (what I was doing), it is OK to do it - but just remember that you still have to face them one day.
But if you are allowing yourself to feel the emotions and are using exercise as a way to vent THROUGH the emotions, I think that is very wonderful!