All these symptoms suggest that you might be having upper respiratory tract
There is a connecting tract (known as Eustachian tube) between the nasopharynx
& middle ear through which infection can spread to ear.
Also obstruction to this Eustachian tube can lead to ear pain
by un-equalisation of pressure between the nasopharynx & middle ear.
And the presence of blood in the cotton swab may be attributed to injury
of ear canal
The management consists of:
1. Drinking of warm fluids to reduce throat pain
2. Antihistamines to provide symptomatic relief from cold.
3. Nasal decongestants to relieve ET tube obstruction.
4. Analgesics to take care of pain & fever(if any)
5. Antibiotics...if bacterial infection is suspected.
So...it will be better to consult the Doctor & start treatment.
Wishing you a speedy recovery.
Thanks & take care.