OK now I am starting to worry

Well I started having sore and burning throat last night, just that. And it disturbed my sleep and had burning throat whole night and whole day today (now it's 10:30 PM here, i live in Sweden).
I don't have any other flu or cold symptoms and I check my fever and it's normal. I am not too sure what is a normal when you check it underarm with a digital thermometer. But I get a result like 36.3 and I think I need to then add 0.6 or something to reach the accurate temperature they get from mouth or anal measurement? So basically I decided that I don't have fever since it's below 37. I don't have muscle pain, body aches or coughing or any headache. Just scratchy throat burning throat. It doesn't hurt when I swallow.

But I am getting scared, really. I got tested today and waiting for results. Probably will get it tomorrow or next day. What if I have it and my symptoms develop? I protect myself a lot and I am isolated usually. I live alone so don't have a chance of getting it from someone at home. I just met 3 people last friday, 5 days ago and before that didn't meet anyone for a long while.
One of them has antibodies other one is vaccinated. The third person I dont know well but he is other two's friend and he seemed to be alright and we sat outside. but he was sitting beside me. They are not sick right now or anything.
I have high vitamin D levels like around 50+ but I have also pCRP high (8). But still I am so scared. Can't help but panicking even though all those people who I know got Covid had normal flu like symptoms and got 100% better in at most 1 month or so at home.

Thanks guys, yes I am worried about Covid but also as mentioned above it can be anything else. I have Acid Reflux problem and chronic post nasal drip since my 20s.
I sneeze often normally and I remember having some type of throat burning in the last year more than a few times.
We will see if I have additional symptoms in following days, just hope I dont have those. I hate anxiety.

Phillies Phan said:

What’s your vaccination status?

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I am not vaccinated yet but plan to schedule it soon. Then I will be more relaxed probably.

Update -
Test shows that I don't have Covid which is awesome.
But my throat still feels like sand paper. Trying honey+ginger, warm tea, etc.

A nurse friend today warned me that I actually may need to do the test again as it can be a false negative because I had the previous test too early.

I will have it tomorrow again to make sure. I still don't have fever and body aches/headache but I developed all other cold symptoms. Runny stuffy nose, cough etc. And I don't feel weak.
Today is the 6th day of my symptoms and as it's getting closer to 8-10 day mark, I am getting anxious. I hope this doesn't develop into something worse.

Ohh thanks Cuchculan, that is a good point there. Interesting.

I know that there are very mild cases out there even with Covid only cases. My cousin had only one night of mild fever, that's all.
He didn't even have any symptoms.
I'm at 6th day today but can't keep it off my mind that from one of these days on it has a chance to get worse. After the 10th day I think I am officially safe. I hope it doesn't get worse.
I will post results here. Probably will have them tomorrow.