Last night, I started to feel some pain in my throat, tongue, and roof of my mouth. Upon running my finger along the roof of my mouth, there is a hard, pea-sized lump on the roof of my mouth. If I open my mouth and look, it is not visible, and is located under the tissue. As this literally began to hurt within a matter of an hour or two, I am wondering if it's some sort of inflammation that will pass. The internet has provided few answers, and pointed me towards cancer: is it possible that cancer could start to bother me that quickly? Is it possible that it is a very out of place and impacted wisdom tooth? Advise?