Hi welcome to Health care magic forum. It appers that you didnt see your doctor recently. Due to chronic rhinitis
led to sinusitis
then to middle ear infection
Middle ear infection causes vertigo
due to pressure on the internal ear. I advise you to consult an ENT surgen for diagnosis and treatment. you may need to get
XRAY PNS DC to ruleout eosinifelia besides other routine tests. vertigo is not due to less oxygen to brain.
You have got allergic rhinitis
so if you findout the allergn cure is in your hands. you only can find the allergen. Make a list of the things you are using food
drinks soap shampoo deodarant sprays etc. Observe when you get more of cold attack. find the things you have used previous day and avoid those things. Weekly
analyse the things which are commenly causing cold should be avoided. also avoid brinjal egg and sea foods ice water ice cream cooldrinks etc.
Wishing for a quick recovery and thanks for calling.