I started taking a formula that contains MSM, Condroitin and Glucosamine about 2 to 2 1/2 months ago. A few weeks after I started taking it, I noticed that I have gas extremely bad and now for about a month and a half ago, I have severe back pain. Could the gas that this product gives me cause extremely painful back pains. I just thought about that today and remembered that in the past when I have gas, I tend to get a backache sometimes but now I almost always keep gas and very bad middle and lower back pain. I'm guessing I might should stop taking this product? I take it for knee joint pain. I also take Omega 3 fish oil and I noticed when I quit taking it for about a week, my joint pain got worse. Any suggestions or help would be greatly appreciated. Thank you.