Too low of body fat?

I wouldn’t say hardcore. I still have a wide chest and shoulders with a 6 pack. I grew up playing baseball and football so there are residuals from that, and now do a lot of bodyweight and dumb bell weight lifting. The Garmin scale (again on profile 7) has the muscle mass at 66 lbs average for the past 4 weeks and the Bod Pod read close to the same.