Years Wasted

I have been stuck in a world of misery for 15+ years not knowing what was wrong with me until I became so desperate that I started to check things out on the computer.  For the first time ever I came across symptoms that looked like they had been written by me.  I have been tested for everything from fibromialgia, ms, to diabetes.  I have been to physiotherapy, foot doctors, psychiatrists, chiropractors and the list goes on.  Some of my symptoms included chronic diarrhea, uncontrollable bladder, depression,leg spasms, body itches,memory loss, extreme fatigue,weight gain, and extreme pain in the back of my heels. After reading some of the articles on aspartame I thought "what the hell", it can't hurt to stop using it....it would just go on my list of other things that I have tried.  Within hours the all-over body pain I was experiencing went away.  Within days my diarrhea stopped and that's when I started realizing that the aspartame really was poisoning me.  Its been a month now since I quit using aspartame and I am feeling much better than I have for many years but my biggest concern right now is that I feel like some one has literally sucked my brain out of my head. I feel like I am becoming very depressed and that all of my emotions are gone.  I walk around like a zombie, I don't laugh, I don't leave the house and even personal hygiene has taken the back burner. What I am wondering is, can this be the result of aspartame?  Does anyone else experience this?  Am I ever going to get better?  I would appreciate talking to anyone who knows what I am going through.  I just want to be happy and energetic again.