{{lisah}} There is nothing wrong with you. But it does sound like you have a too-tired-no-exercise-want-exercise cycle you need to break. Can you find the time to just do something totally different than your normal routine? Last time I had that cycle going, I went ice skating one night after work and forgave myself for missing yoga.
{{Em}} Hope she's better this a.m. When my oldest niece was about 2, she looked at her mother with a scared face right before she puked and said, "Mommy, my tummy's flipping over!" So, in her house, people no longer throw up, they have the tummy flips.