Temporary Setback

I went for a long run on Sunday. The longest run so far, 110 minutes. There is one more longer run this Sunday and from there on tapering for the half marathon. I set out with boost gummies and planned to stop at Barnes and Noble for a water break. The gummies gave me no boost. Once I was tired and spent, I remained tired and spent until I hit my bed. The next morning, disaster! I was in pain. I have taken it easy and skipped Wednesday's run. I now feel fine and will resume my training tomorrow.