No, you are not spiled dear. you are most probably frightened. I know I would be. When your life is going to be turned upside down again, or seems like it will be because of your symptoms, you can't help but be anxious. Then you are not really back to your normal strength, your work rythm is changed, your income is threatened,.... That would have me very anxious. A very normal reaction to low grade anxiety is anger, persistant and intense rage. I mean, look what you have already gone through! My word!
Are you seeing a therapist or someone that you can talk to? It might be a good idea, not because you are mentally ill, but just to help sort out your reactions and feelings right now. A lot of times there are a lot of very intense feeling sthat are hard to separate out and on top of that, if your not feeling well, your body is also stressed and you just don't have the physical strength to put into coping with all the emotional upheaval. Getting a handle on the emotions might make coping with the other stuff a wee bit more doable.
Sorry to hear that things look so bleak right now, and I wish there was more i could do than just write. HUGGS, and good luck dear.