Hi,
I just began my journey here. It's funny, on the outside looking in (at your issue with jogging), it seems so simple to see that YES, your mind is definitely at play. You overcame your fear and jogged. Unconsciously, your mind played a dirty trick on you for taking a chance and is now punishing you. It's just a mind game.
I say this, because my mind just played the same trick on me. I gave up tramadol (1 in the morning: 1 in the afternoon) a few days ago. I haven't had anymore pain than usual. I just read a post here in another section, about someone doing the same thing, and that they were in serious pain. Guess what? I started feeling more pain. I associated this withdrawal symptom from another experience I had years ago when I withdrew (cold turkey) from 500mgs/day of morphine and Lyrica (I don't recommend that) it was 4 weeks of pure hell. Why 4 weeks exactly? That's all the time I could afford before I HAD to start getting my Football Team ready for the season. See how our minds work?
Keep doing a little more each time. Every time you overcome your fear, you are showing your mind who is in charge. You will have setbacks, but you will win out for sure. I am in the process of increasing my exercise and physical activities, as well. I have decided to push thru and keep pushing for the recommended 6 weeks. Then, I can assess how this program is working.
I hope you don't mind me giving unsolicited advice. This seems to help me overcome my own fears.
Take care, you will find your solutions.