2019 1167010LN Stopped overnight

[OpportunisticFinance]

Hi all,

Proud first time Rolex owner of a grey market (bought here on forums through trusted boutique about a year ago) January 2019 116710LN GMT. Last week I woke up to find my watch had stopped overnight - only realized a few minutes after I had put it back on so I didn't see if it restarted once I put it on or not, but it was working when I noticed, just now several hours behind. I set it back to the correct time and have had no issues since (been about 5 days). I had been quarantining pre-xmas so wasn't moving around a ton in my apartment, but I had definitely been wearing the watch the day that it later stopped overnight. Guess my question is, do I have anything to worry about? Is it possible that the battery just got low from a lack of vigorous movement due to me being a quarantine couch potato?

Thank you!