It’s interesting that people make assumptions off of variants by people’s descriptions. The problem with that is people describe things differently. If you asked me how Covid went I’d say I felt crappy for about 48 hours and then had lingering symptoms for several more days while slowly getting better. But what you described is similar to what I experienced the first time I had it. My temp was over 103 and I could get it down to about 101.5 with meds but that was only about 48 hours. The headaches and congestion lasted a while but since it hit me on a Friday afternoon I literally didn’t miss any work as I was working from home at that time. I wouldn’t say I had a terrible variant and I have no idea if it was the alpha, delta, or what. I wouldn’t even say I was abnormally sick. The only thing that seemed abnormal to me was how fast it came on and how fast it moved from my head to my chest. So you and I had very similar experiences but, based on timing (Nov ‘20) I’d guess I had the original variant.