The inverse is true as well from my experience. Many people with anxiety wind up being asked to exercise to help with the symptoms, and some go to the gym. Some go for walks. Initially, the exercise prescription works wonders, and anxiety is forgotten. Some people graduate to be hardcore trainers and take some enhancers, and with some folk, these trigger a rebound of anxiety.
@Sorbate, your post and experience are right on with the two compounds of Tren and EQ. Did you notice anything with Deca? There is literature out there to support anxiety and Deca, but I'm too lazy to look for it.