I had a sudden pain on the left side of my forehead and upper gums/teeth. It kept getting worse throughout the night, and my whole left upper face was aching. I also felt feverish. In the morning, I took Crocin pain relief because the pain was unbearable, and eating from that side was really hard. My gums are still hurting. What could this be, and should I be concerned?

Your symptoms, including sudden severe pain on the left side of your forehead, upper gums, and teeth, accompanied by feverishness, suggest a possible dental issue, such as an abscessed tooth or infected gums, or potentially a trigeminal neuralgia or sinusitis; schedule an urgent appointment with your dentist