Hello dear,
The symptoms as mentioned in your post can be due to:
1. Any pathology in the vestibular apparatus in
inner ear (it is associated with maintenance of body posture & balance)
2. Any fluctuation in blood pressure levels (such as
Postural Hypotension)
3. Decrease in blood sugar levels (
Hypoglycemia)
4. Deficiency of certain nutrients like Iron, Vitamin B 12, Calcium, etc. which interferes with blood formation & nerve conduction.
Investigations like
complete blood count, estimation of blood pressure and blood sugar levels will be helpful in clinching the diagnosis.
There is no need to worry, you will be fine.
Meanwhile, maintain adequate hydration, take a healthy balanced diet & avoid
stress.
Also, take precautions of not making sudden movements of the head and get up from bed slowly.
Wishing a good health.
Take care.