Hi, I'm 28 years old. I've had sore throat and cough yesterday that seems to have gone, and now just experiencing blocked nose and general feeling of having a cold. I've noticed though a small white bump on the side of my tongue, about 2-3 mm across, not painful and it doesn't appear to have any puss inside. it feels much like a small mole like you would find on your skin. Can you help me with what it is ?