I have IBS, and I also think I have Gerd, but was only diagnosed with IBS. I have the weakness, tiredness, absolutely no energy at times, where I feel my legs are going to come out from under me, or I'm going to slide off the chair. Muscle aches and pains in my neck , upper back, lower back, legs at times. Tingling or numbness in arms, and fingers. Nausea, abdominal pain as well. I thought this was from just getting older, I even told my doc about it, and she never mentioned fibromyagia. What do you think ?