Suffering from a cold during the holidays

I finished my long-awaited final midterm exam on Friday and immediately went on a trip to Anmyeondo with my family. After arriving at the accommodation and spending time eating and playing outside with my family until 9 PM, I returned to the room and suddenly started feeling sick. I suddenly began coughing a lot and had difficulty breathing. It felt like I could normally inhale 100% of my breath, but at that time, I could only inhale about 85%? So, I barely slept in that state and headed to the hospital as soon as morning came. The doctor at the time gave a rather cursory diagnosis, so I was told it was a cold and only got a prescription for cold medicine. However, even after taking the cold medicine during the trip, my body aches didn't improve by the time I returned. I arrived home on Sunday, and on Monday (today), I went to the hospital and got diagnosed with something other than a cold. (I forgot the exact name of the illness). So now I'm recovering while taking the appropriate medication for my condition. Please, everyone, don't get sick while traveling; it's a real struggle. And don't try to play through the pain thinking it's nothing serious. I thought it was just a cold and decided to play through it, which led to this situation. I really hate being sick the most.