Trampoline jumping is so much fun though and I assume great exercise! But you should be careful with your bones if they are weak. I'm sorry that you're struggling so much with this. Though its validating to know I'm not the only one, I wish that I was. It saddens me to know you are suffering in this way. I know the struggles with working while trying to heal. I've been barely making it happen. I'm struggling to complete my degree. I will not stop fighting though! When I do finish, I will be sure to make every effort possible help others like us!
If you're able to at least make ends meet with your retirement, maybe you should just hold off on getting that job and concentrate on healing until you're fully ready to work again. Stress seems to only exacerbate the symptoms, for me anyway. Be kind to yourself and try to stay positive and keep fighting! 68 is young nowadays! You still have much to experience in this life. Don't give up. We can do this!
Where is the cyst located?