Certain uncertainty returns as life passes by

So here is my problem. I have been increasing my activity recently and really feeling good about my workouts and time hanging out with friends. That is not the problem. I am afraid that I might be at the start of another setback. I have not sensation of touch in my feet yet sometimes I feel pain, that can be a fake pain from my nerve problem or a major problem that has happened. I can never tell those pains apart. I feel some pain in my foot that has been lingering for a few days. I know that i have been more active the last few days so it may just be sore or what ever. SO I AM STRESSED! I know that what ever God has directed for my life will happen to me so I can take rest in that BUT I really am tired of setbacks. I have no idea what i am thinking about all of this. Do I just continue walking and figure if it is going to fail it will fail no matter what. I wonder if i am crying wolf because of the history that I have with my foot. So that is the wonderful state of mind i find myself in at the moment.