I am sorry to learn about your health issues.
I know that can be very stressful when in such a situation.
The causes of dizziness according to the decreasing incidence are;
1) Benign paroxysmal positional vertigo (BPPV) 20%
2) Vestibular 15%
3) Migraine and motion sensitivity 15%
4) Anxiety and depression 10%
5) Meniere's disease 7%
6) Cerebellar disease 6%
7) Transient ischemic attacks 5%
8) Orthostatic hypotension 4%
Chronic dizziness associated with the floating, rocking, and light headedness and is induced by eye movements (the head being still) should be also investigated or correlated to anxiety and depression, if all the medical imaging, blood work, and examination are negative.
If you are on any medications, their side effects also should be ruled out for lightheadedness, as drugs are quite a common cause for this symptom. Dizziness may be provoked by only certain movements, such as standing up after lying down for at least 10 minutes in orthostatic hypotension or may occur after vertical or oblique head movements, such as lying down, turning over in bed, or sitting up in benign paroxysmal positional vertigo (BPPV).
Simply moving the eyes with the head stationary causes dizziness and there is no eye movement disorder (ocular misalignment or an internuclear ophthalmoparesis), then dizziness is likely to be the result of anxiety. When dizziness occurs without provocation (spontaneous) and is vestibular (ear disorder) in origin, it frequently is exacerbated by head movements.
Internal ear disease vertigo is termed true vertigo in which one feels the rotational movement of self or the surroundings. False vertigo or nonvertigo has a feeling of light-headedness, unsteadiness, motion intolerance, imbalance, etc. You need to consult first an ENT specialist to exclude the diseases of the internal ear. They will perform some clinical tests (vestibular diagnostic tests) to establish the cause. Often, dizziness can be a multisensory disorder due to any combination of peripheral neuropathy, visual impairment, and musculoskeletal disease. Many patients who have thyroid dysfunction can present with dizziness as an initial complaint. In individuals who have migraines, dizziness and vertigo can occur as part of the aura or separately. Spells usually last approximately an hour but can last several hours or days in patients who have severe symptoms. Most patients who have migraines have a long history of recurring symptoms. So that too should be assessed as a cause if you have a history of migraines.
Your primary care physician should refer you to a neurologist, and an ENT specialist for evaluation as the causes can be divided on the system, which is involved.
That should be able to conclude for the diagnosis.
Hospitals and clinics are the safest places if you can keep the physical distancing and masking. You should get an examination and investigations of your symptoms and past history of fainting.
I am glad for the opportunity to answer your question.
I hope this interaction is helpful to you.
Please feel free for your follow up questions.
I would be happy to assist you further if you need any more information.
Thanks for using Just Answer.
I wish your symptoms resolve soon.