For me, I had pain on both the arms fo rthe whole day, a week before I got Heart-attack. right at the joints also some mild chest pains. I thought this was something like a regular pain because of improper sleeping postures or something else.
This is a big symptom, somebody who are facing this should be aware and watch doctor immediately and take their prescription.
Nothing to ge worried as it is just a health issue, this can be corrected from there too.