Healthkit has been working fine since I purchased my Apple watch. Woke up this morning and all of my information and sources are gone. I use MyFitnessPal. Nothing shows up in sources and it will not let me add any sources. My data (age, weight, height, etc.) is gone; I have tried re-adding it and it will not save it. I have turned both the watch and phone off and restarted it, but nothing seems to work. Help.