Hope your recovery is going well. I'm in my 40s, in good shape and no underlying health conditions, I also had three vaccinations. I had COVID late July and early August, it was not a fun experience. A co-worker got it at a wedding and brought it into the office. About four days later I had a crazy fever that took quite awhile to break. Two days of migraine/headaches then joint pain, fatigue and then finally a dry cough. I could almost feel it progressing through my body at various stages, it was weird. I had the "COVID fog" for a good two weeks after that, I could only do half days at work before pooping out. I'm finally back to normal now but it definitely took a bit of a toll, my hiking and jogging health stats are all down 10-15% vs a few months ago.
The worst part is that you can't get an updated vaccination for a good 3 months after being infected AND you can still get reinfected after a month. So even when you're better, make sure you're masking whenever possible until you get an updated shot. I'm thankful I had three shots because I can't even imagine how much worse it would've been without. The people with mild symptoms or who are asymptomatic are extremely lucky.
Stay hydrated, continue to try to eat normally even if you aren't hungry and crack a window to get lots of fresh air. The first week is the worst.
Playing: Total War: Warhammer 3 Immortal Empires, Elden Ring replay, Into The Breach Advanced Edition
Watching: The Old Man, Arcane, House of the Dragon