my god, thank you for all your replies and so quickly! I am talking about myself , was going to put it in initial post but was not sure if anybody would reply so was just hoping for some response.
I suffered with PND many years ago (now in 40s) and this was when I was in my 20s, and was medicated for many months. I functioned but only just. About three years ago I went to my GP as I wondered if depression was lurking but we pinpointed it down to particular problems around my period. I was prescribed a low dose of Prozac which I took for about 18 months. It worked in so far as it balanced my moods BUT I literally could not cry, felt slightly numb , had horrible, angry dreams and did not really feel like interacting socially. With GP's advice weaned myself off it rather easily and then collapsed in a heap of tears. I started taking it again (with GP's advice) with the same side effects and a few months later stopped again with GP's advice.
The physical side effects of stopping were minor (many years ago with PND I was on Venlafaxine and that was a different story) but this was fine. I had the same numbness on it and felt ready to stop again (bearing in mind it was a really low dose). Three months on I'm an utter mess - however both before starting Prozac (twice), whilst being on it and now, several months off it, I remain in my managerial job (in education - so don't worry to the poster who said they were a teacher!), I go to the gym regularly, my weight is stable, my sleep and diet are reasonable, I don't drink a lot (used to, but this obviously didn't help, so I stopped and haven't returned to it). My house is clean, I'm on top of practicalities we all have to deal with and I study and am achieving distinctions.
But - I think I must be badly depressed. Weekends are awful - I need structure - my relationship with my partner is suffering. My dp said today that I was like a pressure cooker (I don't get angry but he said it is like I will get angry). I don't feel like socialising, I don't particularly want to see anybody socially, I feel distanced from normal things like chats on the phone with a friend or meeting for coffee. I feel like I'm questioning and overthinking everything and I can't see a future or point to anything. Sorry to ramble but just wanted to give a context.