House sick

So when I’m home I’m constantly having anxiety issues that make me think I’m sick I’ve had stomach issues and head issues along with chest pain I’ve had lots of test done and nothing is physically wrong with me so that’s ruled out so then I’ll go to my moms or go somewhere and it doesn’t bother me I feel fine could something in my house be making me sick? If so any ideas on what? Or how to figure it out/ fix it? TIA