Linear expectations

I'm a believer in trends and when something begins to look good, I expect it to become absolutely perfect. Same situation if I'm not well and start feeling better, I'm only expecting that pain will go away sooner than I will have time to dwell on it. In other words, in my simple world, I'm not expecting relapses and other ups and downs. Yet, this cyclical situation is what has been happening with my acute back pain problem. Hopefully, this is just a spike (ouch!) that will take me back to “linear” and down to zero-pain very, very soon!