The flu-like patten I have are sinus pressure, overall achy feeling, difficulty concentrating, feeling spaced out, fatigue, bloodshot eyes, feverish feeling, and occasional mild sore throat. I also have very little endurance for activity or thinking, but it is much much worse than I ever experienced it with the flu. I also get sneezing fits but it is not the same as cold or flu. It feels like it's a result of sinus irritation, and using saline spray seems to help. I actually think my flu-like pattern is a combination of flu-like and veisalgia-like. Veisalgia is the medical term for hangover.
Other symptoms includes shattered sleep, a feeling like I'm going to pass out or lose balance, temperature sensitivity, light sensitivity, sensitivity to fabric softener, orthostatic intolerance, post exertion symptom exacerbation, and having to get up during the night to urinate. I also get sneezing fits but it is not the same as cold or flu. It feels like a result of sinus irritation that's usually on the left side. Using saline spray seems to help. And sometimes I walk oddly with very short steps and legs feeling stiff.
Since getting sick I stopped having colds as I used to know them. I no longer get those colds that have coughing, sneezing, severe (as opposed to mild) sort throat. Instead, it seems like sometimes my flu-like cluster gets worse.
Less than three years after becoming ill I got prostate cancer and tongue cancer. That was at age 60. My family is prone to cancer, but I'm the only one who got it before 90 years of age. I believe my ME opened the door to cancer.