My LLMD says no to cardio, he says keep it simple- I go with yoga and some pilates, I think it's helpful to stretch muscles some. Detox when you are done, to clear out anything in your muscles. I also enjoy swimming, when I am up for it. I feel like If I push myself at all, I'm worse for it. Keep in mind that your body if fighting a battle. My Dr. reminds me that I need to conserve my energy for this, and stresses not to over do it (he says he sees to many people who have a couple of good days and push themselves too hard). that said, there is benefit to just moving around and breathing a little bit! Especially if there are things that are an emotional boost. Good luck, start slow.