Anger and working out

So recently something bad happened to me and a part of me can't help but blame myself and no one knows about it because I'm also a bit ashamed. I'm known for being a pretty calm person but recently whenever I see or am reminded of what happened to me I get very angry and frustrated. I try my hardest to not let anyone see this side of me but I get so worked up so once I'm alone I work out like crazy. I won't stop until I'm shaking and just feel like collapsing. Is this healthy? I have never really been like this before but I do like exercising. I just normally don't push myself this hard.