Similar thing happened to me. Depression is a hidden monster

I know this is not the right place for confessions, but sometimes films can really touch viewers on a personal note. I was deeply moved by this film because I feel like I've been through a similar situation. Please read below if you're interested in finding out the effect of antidepressants.

I studied abroad in England for 3 years that were supposed to be my greatest, but turned out to be the most miserable of my life. During my second year, as the course was becoming more and more demanding and fast paced, I started to develop unprecedented intense feelings of anxiety and depression, due to a mix of homesickness, loneliness, competition between students, desire to impress teachers and lack of friends. I was lucky enough to speak with the university's counsellor free of charge for about 10 months, until he got sacked due to downsizing and he moved to a different institution. I felt so desperate, abandoned and lonely after the counsellor left that my studies got affected. I couldn't write my assignments anymore, I couldn't focus on anything, I couldn't talk to anyone. My parents got worried and told me to come back home for good, but I knew I could not just abandon my education that they paid for. I ended up at the family doctor who prescribed me Citalopram (the most popular antidepressant in the U.K). I didn't want to take it initially and waited a few months to see if I could get better by myself. Then an unrequited love happened and arguments with my housemates and my parents, and I felt at my lowest point so I decided to start taking the medicine so I could ease the pain and write my thesis. It didn't have effect on me in the beginning and I was starting to think it wouldn't work. It did make me a lot calmer on the inside in situations where I'd usually be really anxious and sad. A couple of months passed by and I went out of town to visit my cousin. By that time, I was feeling very sleepy during the day and very tranquil. When I arrived at hers, I told her I wanted to take a nap because I got up very early to catch the train. I slept for many hours until it got dark outside. When I woke up, I felt really sick and dizzy and my vision was blurry and deformed. I didn't know where I was or what day it was. When I talked, I heard my own voice but felt like it wasn't coming from me, but from the distance. I felt really close to an out-of-body experience. I had an utterly unusual feeling I could not describe fully. It was like what one must feel on recreational drugs, but instead of joy and nirvana, I was feeling intense fear and panic because I was not in touch with my senses and the real perception. I told my cousin about it and she (as nurse) advised me to go off the antidepressant because it built up in my system and was giving me undesired side effects. I never took Citalopram again after that, I endured my condition another year and a half with support from my parents, I graduated cum laude and left England for good a few months ago. I now feel a lot better every day. I still don't know what happened to me back then that I was feeling all those strange dark feelings of hopelessness and sheer sadness or what happened to me that day at my cousin's. I never told my parents I took antidepressants while I was at university because they would be heartbroken that their 'perfect' child with high hopes and potential got trapped in profound unfounded misery.