Since your
vitamin D levels are 7 & you also have symptoms like muscle pain etc, we can conclude that you have severe vitamin D deficiency.
It's always better to consult a physician in this kind of situation and take treatment only after getting examined.
For quick relief of symptoms, vitamin D supplementation with Inj.Arachitol can be taken from your doctor.
Otherwise, you can also take Syr.Arachitol-nano (60000 IU in 5ml) weekly once for 8 weeks. It is a nanotechnology based oral suspension of vitamin D and has around 90% oral bioavailabilty (absorbed & enters into systemic circulation) whereas capsule/powder formulations have only around 20-30% bioavailability.
After 8weeks of treatment, you need to reassess your vitamin D levels and if the values are normal, then booster dose of 60000 IU once a month for next 1-2 years will be sufficient.
Next Steps
1.Consult your family doctor/physician.
2. Daily morning (between 6am to 8am) and evening (between 4pm to 6pm) exposing skin to sunlight for 20-30minutes would help you to restore your
vitamin D levels to a great extent.