Neck Pain
Woke up ths morning, got this intense neck to chest sharp pain coming from my spine. Went to the office but could not stay for long. Took a leave and lied in bed for hours. The back muscle is still tense but hopefully it will be fine by tomorrow if not 100%. I always get this kind of chronic muscle/joint pain coming from nowhere. This time is probably due to poor sleeping posture.
I know precisely what you mean about concentration, it makes a WORLD of difference. Great suggestion.