mommasita,
If you do feel you need surgery again, I urge you to seek out one of the Chiari specialists. If your doctor told you your Chiari was "gone" and has now "returned", then he truly is not a Chiari specialist. The Chiari specialists fix many surgeries done by inexperienced doctors. They also will give advice and suggestions on treatment, which isn't always surgery.
There is no cure for Chiari, there is only surgery to address the symptoms. Some people do become symptom-free after surgery, others do not. I have heard that the longer you have Chiari before surgery, the more damage is done, and it's less likely you will be symptom free after surgery.
Dr. Paolo Bolognese, at the Chiari Institute in New York is one of the leading Chiari doctors in the world. My surgeon, Dr. John Oro in Colorado is also fabulous and one of the top doctors. Both see many patients from all over the world. Usually Canadians pick Dr. Bolognese because of his location.
Dr. Oro has perfected his surgery to the point that far fewer of his patients have problems such as you experienced. He talked to me about using very fine stitches to avoid CSF leaks. My surgeries with Dr. Oro, decompression and a cervical spinal fusion (totally unrelated to Chiari), have been some of the easiest recoveries I have ever had, and I think it's due to his skill as a surgeon.
Join an online Chiari support group. Ask about brain damage and how to cope. You can also learn so much just by reading other's questions and answers. Dr. Oro's site lists some groups here:
http://chiaricare.com/Resources/Patient-Support.aspx
I haven't been tested, but I know my short-term memory is not good. Before I was diagnosed, I used to worry I would wake up one day and not remember my kid's names! Now I work at remembering, trying to come up with things to help me. I will leave notes to myself, in places where I won't miss them. On my keyboard, on the sofa, on my mirror right at eye level. If it's something really important, I leave multiple notes.
I had surgery 10 years ago, and, because I was seeing doctors that did not know Chiari, searched for an answer for 13 years before that. Because I went so long, I have quite a few symptoms that still bother me.
A few years back was one of the worst times for me. I was told that eventually I will be trached and on oxygen. Another local doctor told me I would continue to lose weight until it was necessary for a feeding tube. Both of these diagnoses were made based on the fact that I have Chiari, made by people unfamiliar with Chiari. Since that time I've learned that I have Dysfunctional Vocal Cords, causing the breathing problems, and working with a speech therapist to learn breathing techniques has helped. Also, I've gained weight instead of losing weight, so I no longer worry about the feeding tube.
I often say that I am making lemonade, meaning I take the bad and try to see something good that comes from it. I also laugh at myself alot! I sometimes say that if I didn't laugh, I'd cry...and I'd rather laugh.
Hang in there! You have a rare condition, and you have already survived brain surgery. Be proud of that! I think us zipperheads must be really strong to endure everything that we must with this strange condition!