Does anyone else need to sleep a lot after getting out of survival mode?

I don’t wanna detail my traumas in this post. I have C-PTSD since I was about 4, and I suffered from panic attacks since the age of 10. Three years ago I started to have digestive and other physical symptoms that no doctor could explain, but I lost a lot of weight and at the end I couldn’t even get out of bed.

Because I got psychosis I got into psychiatric hospital. I spent there 3 months, they gave me medications, which made all my symptoms go away (anti-depressant, and anti-psychoticum), I could even get back my original weight. Then they recommended me to go to the intensive psychitherapy of that hospital, so I’ve went to, it took 3 more months, and it helped me a lot.

So far I got home (2 months ago), I feel like I’ve never felt this calm in my whole life, and I’m incredibly grateful for getting my health back. However I do have symptoms of depression, like emptiness, lack of any emotions, and extreme tiredness. I sleep about 8-10 hours at night, then I sleep 2 more until noon, and sometimes I even need to sleep 2 more hours in the afternoon. I talked to my psychiatrist and she told me to half the quetiapine, since it can cause sleepiness, but it didn’t make much difference. I’d like to go back to work again, but I don’t know how could I do it if I need so much sleep and rest right now. I’ve heard that needing more sleep after getting out of survival mode is normal, but at this point I start to get worried if there’s something wrong with me. Does anyone have any experience with that?