Anxiety taking its toll

I just had my son 3 months ago and around 8 weeks postpartum I had a massive panic attack and since then had been lightheaded and dizzy and it seems like my memory is pretty bad like I have issues remembering things I did that day and that bothers me because I typically have a good memory. It feels like days go by in a blur and that I'm not really there experiencing them myself, like I'm having pretty bad derealization and depersonalization. Sorry this is so long, lately I just haven't been feeling like myself, like I'm almost going crazy if that makes sense. Sometimes I fear something is wrong with me physically like I'm having a heart attack or getting dementia and sometimes I think I'm going to go crazy. Can anxiety cause you to question reality, like whether something you just witnessed or did actually hapowned? I find myself doing this a lot although I know its real I just get worked up thinking about reality and everything its weird. I also have postpartum ocd, like the intrusive thoughts and I'm terrified of getting postpartum psychosis so I'm always looking at how I act and whatnot. This has taken such a toll all I do is lay around and have no energy because I'm up till 4 in the morning with anxiety and sleep till 3pm, because of this anxiety being quite bad I feel depressed and have no motivation to do anything, is this normal? Sorry if this is posted in the wrong place I'm new here and this is long but only because I have posted other places and got no responses. Thank you for any advice anyone can give, I appreciate it!