A
vitamin D level of 2.97 ng/mL is critically low (severe deficiency).
At this level, what you are experiencing is very real and medically explainable, not “just in your head”.
Severe vitamin D deficiency is strongly associated with:
• Persistent fatigue & low energy
• Low mood, depression-like symptoms
• Irritability, anger, frustration
• Anxiety, overthinking, negative thoughts
• Poor stress tolerance
• Body aches, heaviness, brain fog
Vitamin D plays a role in brain neurotransmitters (serotonin, dopamine) and nervous system stability. When levels are this low, emotional dysregulation is common.
So yes — this deficiency alone can cause what you are feeling.
Health Tips
• Tell yourself clearly:
“This is a biochemical imbalance — not my personality.”
• Mood swings during deficiency are temporary and reversible
• Avoid big decisions while correcting levels
• Reduce caffeine (can worsen irritability)
• If thoughts become overwhelming or hopeless → seek support early, not late