I am feeling lethargic with cognitive impairment, tiredness lack of motivation. I feel that I have had an underlying virus or flu since 4.5 months ago.  Blood tests check out okay for viruses.  Blood test okay.  Diagnosed with depression 18mths ago.  Now taking 60mg per day of citalopram + 20mg propanolol twice daily.  I have felt very well for period of time whilst on this medication but havent really been 100% since depression diagnosis.  Struggling at the moment.
His understand your concern. You are suffering from depression and well on treatment. Citalopram is one of the good Chat Doctor.  Usually depression will improve very gradually and takes time to fully recover. You will be alright soon if you stick on proper therapy. So stick on treatment. Thank you.