I’ve been so depressed lately.

I’m having a rough time honestly... some days i think I’m fine and then days like today I just feel so blah like everything is wrong. Idk what the deal is . In the beginning of my pregnancy I was super happy and whatnot. Now I’m getting to the point where the worry is overtaking every thing. I’m 23 weeks and 1 day today. I hate the way my brain works . First I was worried about making it past that first trimester. Did that. Then it was worrying over the anatomy scan, got through that no issues at all baby was perfect and even measuring ahead 5 days!! , now I have an appointment on Monday and it’s worrying if she is still on track or if they will even know bc my growth scan isn’t until I get around 30 weeks .... I’m making myself worry sick this entire pregnancy!! This is my first time being pregnant after being diagnosed with PCOS and told I wouldn’t have a baby so now that I’m pregnant it’s constant worry and anxiety. I’m thankful but I’m stressed. I want my baby more than anything and I am so scared of stillbirth and what not . I aggravate myself to no end with this crap. Everything has been great so far but my brain is like “so what? Doesn’t mean something can’t or won’t go bad” I just want her here with me so I can not have these worries 😭 i was diagnosed with severe depression at the age of 13 so I’m use to it but this is not how I wanted to spend my pregnancy. Also, is it normal to be constantly hot at this point ? I feel like I am just so hot and I can’t breathe ... even after sitting in bed naked after a shower . Someone please let me know