Your report says you have low level of
vitamin D3, so you took tab. Vitamin D3 (60k unit) 5 times after every 10days.
Vitamin D3 60k unit is normally taken once weekly for 4to8wks. So,5doses of vitaminD3 should not have harmed you. Your problems are not related with side effects of vitamin D3. Some side effects of taking too much
vitamin D include weakness, fatigue, SLEEPINESS(not insomnia), headache, loss of appetite, dry mouth, metallic taste, nausea, vomiting, and others.
It is also true that Vitamin D3 can aggravate some unknown underlying disease like sarcoidosis, hyperparathyroidism, renal calculi
Avoid taking any antacid gels as gelusil or digene while on vitamin D3 regimen. Aluminium hydroxide interacts with vitamin D3.
Check for blood for T3,T4,
TSH,PTH, vitaminB12. Ultrasonography of whole abdomen. Echocardiography.
Stop taking vitamin D3 tablet. Consult any consultant physician or endocrinologist and cardiologist in higher centre,where both are available.