Hello everyone! Earlier this week, my Apple Watch battery life has been the same since I first purchased it (March 2016) where it would last me about two days. This week, on Thursday night, it was one of the days where I would need to charge my watch, but I was planning on working out. So I charged the watch to full (only after draining to below 10 percent as usual) and then I pulled it off and did my workout so it would get recorded. Then I turned it off until the next day, as usual. To my surprise, the watch drained in record time and was dead by the end of Friday. I also had to charge again on Saturday night. Any ideas on what the issue may be? If I have AppleCare, do they have a diagnostic to look at the battery at the store like they do with phones? Thank you for your time and help.