Is the area red or hot?
No there is nothing visible
As you can imagine, the only way to be sure what kind of lump you have is to have it examined.
Nonetheless, I can tell you most skin or subcutaneous (fatty tissue under the skin) lumps are benign.
Most common are little fatty growths or sebaceous cyst. Lipomas are benign fatty tumors, probably the most common ones in the entire body.
A sebaseous cyst is a closed sac found just under the skin and most often arise from swollen hair follicles, but also skin trauma can induce a cyst to form. Benign tumors are usually slow growing, painless, and freely movable lumps beneath the skin. Since you said yours is painful and and nonmoveable I suggest you see your doctor to make sure everything is ok.
There is always the possibility of a tumor but I don't want you to worry. Most of the time it is nothing serious.
ok thankyou. Hopefully it will just turn into a boil\spot over the weekend
You are welcome.