Each case is considered individually. You can appeal on line, if you get denied. Give it a chance. It sounds to me you have a very serious illness. It's going to take some time. When appealing include all your doctors, hospitals, tests, surgery's and medications, You want to prove you can't walk, stand or sit for long periods of time. Have proof about your memory problem. That is very important. Prove that even getting dressed for work is a task. Whatever you say have proof by a doctor or a test to back it up. Try to get letters from your employers saying why you were dismissed or why they didn't feel you should be working. Good luck let me know if you have any questions.