its probably due to the travel, the pollution, dust and this could get worse if you might have a deviated nasal septum(if u do).
if your having headaches it could be sinusitis as well. try doing steam inhalation if possible and try using xylometazoline nasal drops to clear blocked nose. hav an (antihistamine+leukotriene antagonist) tablet at night before bed for 5 days to clear off allergies and cold symptoms.
if you get worse please consult an ENT or a physician. make sure to drink only warm water for few coming days.
Answered2018-08-24 10:51:44
Let others know if this answer was helpful