In 2006 I began experiencing weird, intermittent episodes of swelling mostly in my hands and wrists, and which would occur 24-48 hours after exercise. I finally had a severe episode with perhaps the worst pain I have ever experienced while out of town, staying at a hotel. I was seriously considering going to the er, but was able to make pain bearable with iburprofen. Symptoms subsided after a day or two, but I continued to experience intermittent, slightly less painful episodes. Long story short, went to PCP who did blood work to rule out RA, Lupus, etc. Everything came back normal. referred to rheumatologist, who examined me, looked at my records, and pronounced that I did not have a systemic inflammatory disease. Gave me some cock and bull story about having something similar Reflex sympathetic dystrophy, which never made sense. Recommended steroid injections in shoulders, ice packs, no exercise. Symptoms mostly cleared up, I was relieved, but continued to experience unusual pain and inflammation in muscles after playing softball, which I did frequently. Symptoms gradually increased over the next few years and I now have RA, with constant pain and swelling in hands and feet. I had never heard of palindromic rheumatism, but in doing research I came upon it, and it sounds just like what I was experiencing. WEll, I have a new rheumy, who seems much more compassionate and involved has me on leflunomide and in the near future Humira. Not much relief so far, but I am hopeful. By flu like symptoms I guess you mean the ache and fatigue. Yep, got those too. Good luck.