Throat pain. A cough or runny nose.

Last week, I experienced a mild cold with a severe headache, which prevented me from sleeping throughout the night. The following day, I had a lingering headache and a one-time fever of 100.1°C. I didn't take any medication, managed to get a good night's sleep, but woke up with brown blood in my mucus and felt fatigued all day. I slept well again that night, but in the morning, I noticed more brown mucus along with some bloody sputum. Although I didn't have a cough, I developed throat pain that was particularly noticeable during breathing. The pain was located in the middle of my chest, below the sound box and extending to the center of my chest. This ache-like pain intensified when walking or climbing steps, but it lessened when I sat down. Additionally, both of my tonsils appeared slightly red and swollen, and the tissues behind my tongue on throat wall seemed swollen as well. My tongue had a yellowish tint. Despite not having a cough or runny nose.