for the past 6months,i've been havin a stuffy nose which disturbs my breathing especially when am in a cold environment,it all started in august last year when i was having an anxiety problem but i reduce on december last year,i thought with time it wil wil heal because i've been on medication which i stopped dat december when it reduced,the doctor said i should stay out of any cold substance that it's an allergic reaction but few days back instead of going completely,it just started again,it becomes worst at night wen i want to sleep but if i should wake up by midnight to ease myself or early in the morning i do notice that it reduces but it just disturbs me alot weneva i want to sleep..please what is this,i dnt understand,could it be an effect of anxiety or a health problem,which drug can i use to heal it complete,am worried and disturbed by this.