iWatch6 tendonitis

After wearing my iwatch6 with the athletic Velcro band most of the time day and night for many months my left wrist and hand developed severe tendonitis. This made no sense to me as I am right handed and have not strained my left wrist with any activity. I looked up iWatch issues on Google and found many posts about the iWatch causing this. Some related to the band location and some to the underside of the watches infra-red diagnostics ability. I am wearing the watch where I am supposed to above the wrist rather than on it. I really enjoyed the watch especially the modes for swimming and outdoor cycling. I took off the watch and now two weeks later the symptoms have improved dramatically. It seems there is an issue with whatever the bottom of the watch generates to get the diagnostics. I called Apple about this. After an hour being bounced around I got to a "safety person". They asked me questions and had me submit eight photos of my left wrist wearing the watch and not wearing the watch. They promised to get back to me the next day. Three days later and radio silence. Any thoughts or suggestions?