Serious brain fog

Hi everyone, I haven’t been on here in quite some time, but I thought this may be a good place to get some feedback. My son is 14 months old. Prior to pregnancy, I had struggled with depression/anxiety, but finally found medication that worked for me… after 20 years of trying. I actually cried when I had realized I spent most of my life thinking how I felt was “normal”. Anyway, I was closely monitored throughout pregnancy. During that time my attention span plummeted- not that it was great before- and it was interfering with work. So, I was put on another pregnancy safe medication to help with concentration. It helped a little so I continued with it. Postpartum, I struggled a bit, but overall came through within a few months… but the brain fog continued and I feel like it’s getting worse. My psychiatrist has been offering suggestions and we’ve been working on adjusting my meds… but nothing is helping. I’m forgetting words, have trouble verbalizing what I’m thinking, frequently forget what I’m doing, somehow don’t see things that are directly in front of my face, and I am easily irritated when someone asks me a question while I’m already trying my hardest to stay focused on what I’m doing. It’s like I can’t even think enough to answer simple questions (what’s the dinner plan? Have you seen my school shoes? Did the dog eat? Are you using this or can I put it away?). It’s getting kind of scary. I regularly feel disoriented and really struggle with staying on task. My son is 14 months, I have 16 year old step daughter who we have every other week (50/50 custody), I work full time from home and have my son with me (I do get some help from my dad for a couple hours a day). Majority of housework, cooking, cleaning fall on me bc my husband works long hours… he helps but I usually have to direct him which is also exhausting. So is this just overload? Anyone else experience this?