I believe that we are all made of Mind, Body and Spirit.
Exercising the Body seems to have worked for a while, but it sounds like something more is still going on. Maybe it is time to involve the mind and spirit. Continue to see your therapists and tell them of the changes. Analyze what has changed in your life that is bringing back these feelings. Find some inspirational quotes, carry them with you and read them when you feel the urge. Memorize them, search out new ones, use them as a form of prayer. Try Yoga and meditate. I don’t know what that must be like, but I hope you find a way. I looked for some quotes to get you started:
“133. There are two ways of healing sickness, material means and spiritual means. The first is by the treatment of physicians; the second consisteth in prayers offered by the spiritual ones to God and in turning to Him. Both means should be used and practised.” Abdu’l-Baha
“The fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law” Galatians 5:22
“My fault, my failure, is not in the passions I have, but in my lack of control of them.” Jack Kerouac
“Self-discipline is an act of cultivation. It require you to connect today’s actions to tomorrow’s results. There’s a season for sowing a season for reaping. Self-discipline helps you know which is which.” Gary Ryan Blair
“Respect your efforts, respect yourself. Self-respect leads to self-discipline. When you have both firmly under your belt, that’s real power.” Clint Eastwood
“Physically you are a human being, but mentally you are incomplete. Given that we have this physical human form, we must safeguard our mental capacity for judgment. For that, we cannot take out insurance; the insurance company is within: self-discipline, self-awareness, and a clear realization of the disadvantages of anger and the positive effects of kindness.” Dalai Lama
“Be patient. The path of self-discipline that leads to God-realization is not an easy path: obstacles and sufferings are on the path; the latter you must bear, and the former overcome—all by His help. His help comes only through concentration. Repetition of God’s name helps concentration.” Swami Ramdas