Hi Toast,
I'm really sorry that someone so young has to deal with this! The good news is that my experience with the surgery is good, so it can be done without you changing at all. And I have no head aches. I only did the endoscopic resection on June 2nd, so it's still early. As you will see on other posts, the major thing is to have a neurosurgeon experienced with colloid cyst.I would add that endoscopic, done by an experienced surgeon, is like a miracle (at least for me). Emory clinic came a lot when I first started googling this.
Best of luck to find the perfect surgeon, and try to keep positive!

You'll be just fine, medicine is so advanced these days!
Anki