I am currently sick, possibly covid or a flu, but my right testicle is sore and i was wondering if i should be worried or if it'll pass. the soreness began when i woke up about 17 hours ago?

You should have it directly evaluated today, if possible. You may have viral orchitis requiring anti-inflammatories, bacterial epididymitis requiring antibiotics, and whatever’s causing the pain/swelling might be making your testicle more likely to twist (called torsion) in a way that limits its own blood supply.

Wear a scotal support, use a heating pad 3x a day, Ibufen. If the pain increases or testicle enlarges pl see a Urologist right away. Hope you get well soon.