Hello and Welcome to SparkPeople!
Congratulations for creating healthier habits for yourself. Not really knowing what activity you chose, any medical conditions you may have or what foods you had eaten that day, it's impossible for me to say what may have happened.
Here are some informative articles from our Healthy Lifestyle section that you may enjoy.
Exercise Safety tips for beginners: www.sparkpeople.com/resource/fitness_artic
Ever wonder how SparkPeople determined your daily nutritional goals? This link will take you step by step... www.sparkpeople.com/resource/calorie_calcu
What to eat before you workout: www.sparkpeople.com/resource/nutrition_art
You may also like the related content in these articles. The Healthy Lifestyle section is full of wonderful resources for you. Take a moment to look around and have fun on your journey!