Hi Jmg, and thanks for your response.
2 weeks ago I went gluten free without having tested for celiac. I know now that that was a mistake but unfortunately I did not know at the time. As I have been informed, to do a blood test one have to be on gluten for at least 6 weeks prior to the test.
In any case, by the end of the first gluten free week, I felt exceptional improvements in typical IBS symptoms. I had higher energy, and I generally felt much better. By the end of the second week, however, some of the symptoms began to recur, like fatigue and upset stomach.
I know I am a noob and probably I should wait longer for my system to stabilise, so, I apologise if my post is noobish.