Fatigue

Today I am fatigued, and achy (I can't spell) all over.  I also have alot nausea.  I don't know if it is just a cold I picked up or something worse.  I keep thinking about my doctor's appointment tomorrow for my ct scan, and thinking it might be cancer and that it is to late for them to do anything for it.  But then I tell myself that I am being stupid and it is probably nothing and I need to trust God to see me through.  Please God I need help!  I was hopeing my husband could go with me to my doctor's appointment but he has to work and cannot come.  If it turns out to be nothing that will be fine but if it is something then I would of liked to have him with me.  I am just venting because I am scared and anxious about tomorrow, which I know is unproductive because it will not change anything to worry.