Vitamin D deficiency can cause body heaviness, muscle weakness, fatigue, anxiety, gas, and abdominal discomfort.Left-side heaviness and stomach fullness are commonly related to muscle tightness, gas, stress, or low vitamin D.
If all reports are normal except vitamin D, it is usually not serious.
Next Steps
Take
Vitamin D3 60,000 IU once weekly for 6–8 weeks (as advised by a doctor)
Get daily morning sunlight
Follow a balanced,
calcium-rich diet
Do light exercise and walking.