Here are some words to describe your energy level today. You can add more words and note any variations you feel throughout the morning, afternoon, and evening.

High Energy

General high energy: energetic, lively, vigorous, animated, spirited

Positive and enthusiastic energy: zestful, vibrant, peppy, sprightly

Active and dynamic energy: brisk, zippy, forceful, dynamic …

Medium energy level 

Moderate, average, middling, balanced, steady, composed, relaxed, leisurely, temperate, even-keeled, moderate-paced, neutral, non attached…

Low Energy level

Tired, lethargic, sluggish, fatigued, exhausted, weary, listless, weak…