Your headache possibly should be related to your earache & which is causing you feel like you are walking in space & unbalanced. Please see an ENT specialist
.The might be some problem in your eardrum(like infection).
Anaesthesia does worsen all kinds of headache but this seems more related to ear problem.
The eye floaters
if in showers & associated with flashes(lighting like flashes) and reduved vision are of concern. Do get a dilated fundus check up at your near by eye hospital.