Been on citalopram 40mgs fo 3 weeks now

So as u can see iv upped my dose of citalopram to 40mgs been 3 weeks now on the second week I thought i was feeling better because I was on holiday an my mind was so busy an I really felt happy an good in myself as soon I got home after a few days I woke up one night really anxious an I keep getting morning anxiety and feel proper depressed and my anxiety has been quite high but I have been able to control tho.. an still go to work an out and about An also iv been feeling super sensitive atm like if I listen to a song or if someone was to shout at me I'l cry... does this mean my antidepressants are still trying to work an need more time or ain't they working at all? Anyone else experiance this?