Jessica,
I'm so sorry you had to go through so much during your SSDI hearing

Sometimes I wish the people who make decisions that have such an impact on our lives would have to walk a mile in our shoes. I am, however, very happy that your SSDI was approved! My SSDI hearing only took about 15-20 minutes and I was approved. I had a judge and two other experts in the room that were compassionate and had enough sense to realize that MG can be unpredictable, no two cases are the same and my medical documentation supported my disability.
You aren't crazy and I'm glad you know that. Physical Illness can take a major toll on us mentally and can cause so much turmoil. It's all very overwhelming and frustrating so speaking to a psychologist is a very good idea. I've had sessions with one myself when my illnesses were just too much for me to handle mentally. Find one that specializes in Chronic Illness or at least one that has knowledge of the effect Chronic Illness can have mentally on the patient.
For now focus on your SSDI victory, that is a major road block that has been removed from your Chronic Illness journey.
You are in my prayers

Shari