Anyone else get heart racing out of breath?

[hudskn]

I'm only 23 weeks third pregnancy but omg I am struggling. My house is a tip I've been in bed all morning. My heart starts racing from doing the littlest thing and I have to sit down straight away. I would rather just lie in bed but that isn't an option with two kids.

Does anyone else get this?

Have you had your iron levels checked? I know that can cause heart racing/palpitations/skipped beats and extreme tiredness/breathlessness.