How would you deal with a husband that has no empathy?

Im a sahm (f32) and for the last few months ive been struggling a lot and when i say a lot i mean im on the edge of a mental breakdown. I feel sick almost everyday , my whole body is swollen, im exhausted and i dont even want to start talking about my mental health. I have told my husband (m35) about this a few times and all he does is either he will tell me ‘youll be alright’ or he will not say anything and just leave. I have also asked him why he reacts like this when I express my feelings to him and he says ‘ im just giving you space’. I feel like hes not even listening to what im saying and im starting to feel lost and alone. I dont know how to deal with this anymore.