I'm really not sure if I'm getting better. I'll have a few weeks where I do feel largely better, similar to what you said, but then I'll have symptoms again. The symptoms continually evolve too and they occur even without exertion. Like I'll have a couple weeks of a lot of lightheadedness, then a couple weeks of headaches, then a couple where I have more psychological stuff, like panic attacks and obsessive thoughts. It's a cycle of different symptoms it seems. But no matter what the other symptoms are, exertion makes them worse and brings on headaches and lightheadedness almost instantly.