Hi
Welcome to the Health Care Magic
Dizziness is vague term - if there is definite sense of rotation, it is vertigo.
If it is from getting up from bed, it may be from postural hypo-tension.. Did you check your BP?
It can be from anaemia – what is your haemoglobin? / Has an ECG been done?
Hopefully, ECG, blood pressure, blood counts and other investigations have been done and are normal?
The body's balancing mechanism is in the
inner ear. An ENT (Ear Nose Throat) specialist is the one to see - especially in the presence of
tinnitus. They have special tests to confirm or exclude the contribution of the ear - which probably is the case with you. If there are no clues, you may have to see a
neurologist.
Regarding the heart - EKG / HOLTER (24 to 48 hour ambulatory monitoring) /
ECHOcardiogram / TMT (Treadmill exercise ECG) / LABORATORY work-up – will all be necessary for further assessment and assistance. The treating doctor may suggest them depending on need, based on his assessment of the situation
Take care
Wishing you speedy recovery
Good luck