You can tell your body composition by simply looking in the mirror.
<span>B. decrease the incline of the elliptical</span>
You possibly had an ear infection that travelled to your neck. It has happened to me. I would definitely recommend going to a Professional Doctor and ask them.
Moderate activity is moving around for a reasonable amount. for instance, walking a little bit and taking a bike ride. vigorous activity is moving and exercising a lot, for instance going to the gym for four hours and lifting weights while on the treadmill. BTW don't do that XD.