I can relate - I just am getting over an awful bug that took me down! In the past I would just push thru the illness but this time I could not even get out of bed. I actually felt worse than ever. I had the same thoughts - how did I not get this sick before? Why is this so much worse? I almost felt like all this toxic stuff was flowing out of me.
Surprisingly - I woke up this morning and I feel MUCH better. Better than I have felt in a long time..I am still sick but it is different. Like other said, I do feel like I hit some low with the illness - it made me stop and get the needed rest.
I hope the same for you!