Could be covid (serial testing on RAT would be needed) or a regular cold. Either way, probably not a good idea to take part in a tournament. That's asking for trouble.

Could be leukaemia.

I had something similar to this two weeks ago. Sore throat and fatigue. Felt like I was getting congested the whole time but never actually did. Throat was super sore though, to the point that I was avoiding talking.

But no sneezing, minimal coughing (would occasionally start coughing at night, take a cough drop and then it would not recur). No fever.

Tested for covid and it was negative. It was weird for a cold though. It felt like I was about to get VERY sick the whole time but then I never did. Weird.

Time will make it better. You can be physically active whenever you feel like it, but you shouldn't give other people in the tournament your illness if you're sick.

The new tick-borne disease?

Strep

Test for COVID.

I think I have a common cold. I had Flu A this winter and it is not as bad at all. It started with mild sore throat on Monday, to the extend that I thought it was LPR or alergies. Then developed mild chils, fatigue and dizziness. No fever. Day 3 and I feel - no energy, fatigue, little sore throat and overall feeling of chills of and off.

No sneezing, slight congestion but no running nose. Is this cold? I had a lot of acitivities planned for the next 4 days including playing in the tournament and I am not feeling up to it now. What can I do to make it better? I taking vitamins, C, Zinc, drinking liquids.

Can I be physically active, starting day 4 tomorrow? I have to play as part of the group.