Could low levels of vita d contribute to chronic fatigue?

Yep.: Vit d deficiency --> fatigue, joint pain &/or swelling, muscle pain, cramping, &/or weakness, chronic pain, uncontrolled weight gain, high blood pressure, restless sleep, poor concentration & memory, headaches, bowel & bladder problems. If you have chronic fatigue, get your vit d checked, along with a full profile.

Chronic fatigue: Yes, along with many other hormones. Have you levels checked.