Slowly, I can't help myself. You don't have to be a clone of your spouse. You don't have to "match his energy." You just have to be yourself, and appreciate your differences. If you need to walk around the block to spin off your nervous energy, then fine. If he wants to park it on the couch and watch golf tournaments, breaking only for bathroom breaks and Cheetos, fine. If you're a gal for whom Cheetos are the work of all that is evil in the world, fine -- Get behind me Satan and get doing something which makes your heart sing. It doesn't mean you don't love NG -- it may mean you don't love sitting on the couch, watching golf and eating processed cheese puff-type food.
No one ever said you had to be the same. In fact, Michele W-D writes about this in the "Sex Starved Marriage" -- how High-demand and Low-demand spouses can still find fulfillment within their M.
Live as your essential self, true to yourself, and you will break through any self-imposed thoughts which are holding you back. Even the thought that somehow you have to match intensity levels, interest levels, fitness levels, caloric intake levels, etc.