Saarah, when you mentioned "the floor is bouncy" I remembered all too well my first year with CFS when that bouncy feeling first started. I was on a trip with my oldest daughter, and had a heck of a time. And I became very tired and weak. When I got home, I eventually landed in the hospital where I was diagnosed with hypoglycemia. Later, a specialist, said that was not a correct diagnosis. Later yet, my family doctor diagnosed me, after ruling out everything else with blood work, etc., that I had CFS.
I had had vertigo years earlier when I was still teaching high school, and it was so bad that I had to stay in bed for several weeks. Was sent for a brain scan as that doc thought I had a tumor. Couldn't walk a straight line, couldn't read, couldn't turn my head without dizziness taking over. Tests showed no brain tumor.
But I never connected that event with the later one that was diagnosed as CFS. I do remember telling the doc who later diagnosed me that I felt like I was trying to walk on a floating rubber raft on a lightly wavy lake.
No nausea. Yes to insomnia. Malaise. No swollen glands at diagnosis, but have them periodically now. Minor headaches now, though I didn't use to get them except back when I was in college. Some days I'm able to get up and walk the dog and run errands. Other days I have to stay on my recliner and watch TV or read.
Other problems have cropped up, but after all, I am 82 and unable to exercise the way I should. Had cancer and worry sometimes that it is returning. Try to close my mind to that possibility. So...I live my life, a very quiet one...with gratitude for what I still have and try not to get too disgusted with myself when I have to take one of my frequent "days off" and stay in bed.
I miss dancing! I miss walking as far as I want! I miss getting to church each Sunday! I miss getting to my writing group regularly. I miss taking short trips to visit my kids who live out of town. I miss a lot of things! But I am grateful for my good days, for visits from the kids, for kind neighbors and a climate that is neither too cold nor too hot as I can't manage heat. (My personal thermostat control gauge is broken.:-)
Overall, I sympatize and empathize with what you have described. For me all this started when I was in my sixties. Since then it has been a succession of other problems and a downward slide. I have learned to be grateful for what I can do and for my wonderful and understanding family. The "good days" are a blessing!
I sincerely hope you are one of those of us who turn the corner and return to health within a few years. It happens! God bless!