I've got a Garmin Forerunner 235, bought it 2.5 years ago. Bought it for tracking running, cycling, and activity, and waterproof was a big selling point. Despite it being waterproof, I've never worn it in the pool or shower, closest moisture has been perspiration and a few time running in the rain. So yesterday after a run I noticed a small spot of condensation on the watch face. Then this morning, the entire face is clouded over. Really disappointing. Wonder if I did something wrong or defective product...