feeling defeated

I was diagnosed with pcos back in february. i was severely depressed for a few months following. once summer hit, I found I wasn’t depressed anymore. I had lost 28 lbs since being diagnosed and i’m weighing less than I did my senior year in high school. i’m becoming more confident in myself and my body, however today I woke up feeling depressed out of nowhere. it’s so strange for me to be like this for no reason. this feeling sucks and all I want to do is cry. i’m late again so I got my hopes up and of course got bfn. I really thought losing so much weight would help me. but I guess not. I really hope i’m not the only one who gets randomly depressed.