Has your bug problem been addressed or is your house still infested? If it is, you need to get in touch with a professional to sort the problem out. If the problem has been resolved and you still feel scared to sit down, I think a chat with your GP might be in order. You're obviously suffering some sort of anxiety after this experience - and who can blame you! - and you may need professional counselling of some sort. Hope things get better for you and you start to enjoy your home again.