Can my house make me feel sick?

So we’re in apartments. When we moved in here the lady gave me a little deal and said if we apply for this apartment then it was 100$ off rent a month. So we did it because we were desperate and thought she was being nice bc I had told her we could only afford that amount.

Anyways. We’ve lived here 6 months. I’m about 3 months pregnant and I feel sick all the time (I know I know thatsnormal when pregnant. But this is different. ) I probably never would have noticed but we went on a trip last week and were gone for about a week. We stayed in an air bnb and I felt great the whole time , so much energy , took no naps , no nausea . The day after we get home. I wake up so tired , bad headache again , and just literally exhausted and no energy. I have felt like this for months now I’m realizing and was thinking it was just pregnancy and breasfterding with a 1 year old. I also was putting dishes away and our cabinet that we put pans in smells like mold. There is no food In there only a few pans and now I’m getting very paranoid.