Brief Answer:
Consult ENT / Have a Holter
Detailed Answer:
Dear friend,
Welcome to Health Care Magic
 	Light headedness is vague term; unsteadiness...   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 – standing and lying? It can be from anaemia – what is your haemoglobin?
	The body's balancing mechanism is in the 
inner ear.  An ENT (Ear Nose Throat) specialist is the one to see - they have special tests to confirm or exclude the contribution of the ear.  particularly so with 
tinnitus.   
 	If the ear is excluded, you have to be followed up by a 
neurologist. / MRI of brain and neck (spine) may be needed.  MRA (MRI 
angiography) shows blood vessels and is generally done at the same sitting.
 	If there are no clues, you have to be investigated by a Cardiologist!   It is reassuring to know that 
Stress test is normal...it excludes reduced blood supply as the cause.  HOLTER - 24 to 48 hour ambulatory monitoring – for 
arrhythmia may be necessary for further assessment and assistance.  Undiagnosed arrhythmia could cause vertigo
For control of pressure, the dose of 
Ramipril may have to be increased…
A second drug (even a third) may be added, later on…
You are taking two antidepressants…they also could be contributing to light headedness…
Discuss with your doctor / the number or dose can be reduced / changed?
Good luck
Take care	
Wishing all well
God bless