I told the program I had this since the year I was born; not noticing months it calculated 45 years even though I don't turn 45 till July... ha ha... anyway, as we all know this syndrome is genetic, so we've all had it our entire lives. You may have only been diagnosed 2 years ago, or only felt symptoms for 5 years, but it's actually a lifelong condition.
From the age of 18 I realized alcohol was not for me, and second hand cigarette smoke always made me ill. I started feeling tired in my late twenties, and discovered the raw vegan diet in my early 30s, which helped me feel energized again. Then in my late 30s I got a head injury which forced me not to exercise for almost two years. Even after I recovered, my health was so much worse that I thought I had some kind of deficiency or other problem. In a blood test for vitamin sufficiency, my doctor discovered "Oh by the way you have Gilbert's" and then wrote it off as nothing. But I felt it explained a great deal. Later on I discovered Gilbert's facebook forums and someone suggested Calcium D-Glucarate. It really helps give me a lot more energy every day. I've finally rebuilt my strength and I now dance and do trapeze again. Moderation is key.