I have always thought over the last 18 months that my doctors were missing something, until finally i realised that it was all from my anxiety. Eventually (although it was hard) i started to be able to ignore the symptoms once i knew there was nothing wrong with me, and once i could ignore them to some degree, the symptoms reduced majorly. now i just tend to take each day as it comes, if i feel awful one day, i just go with it and rest and know that tomorrow will be better (it did take me a while to get to this point though). I know how you feel about going outside your house also, as this is something i rarely do now, but i have started going for tiny walks each day (not very far from home, but at least i am out of the house i guess). It is a long and hard road to get back to being able to managing anxiety, and also a bit of a learning curve, but rest assured you have all of us here to support you as well.
I see a psychologist, and do meditation and CBT therapy, so maybe some of these things could help you as well.
Wishing you all the best, and hope you are feeling okay xx