You need to go to the doctor, something doesn't sound right. Good Luck!
There should be a small knot-like area like you describe, but on the front wall - like directly behind your urethra, not towards your butt. This is the fabled "g-spot". It should be about the size of a bottlecap or so.. (sorry can't think of another description). Is this the area you're referring to?
it could be it hopefully it is. i checked it again yesturday its a bit hard to get to ill check again and get back
Could it just be your cervix?
thats what i was thinking but I'm not sure if it is because it think it feels different to what i thought it should but i could be wrong
If there is no pain, no abnormal discharge, no fever or lower abdominal aches, no abnormal bleeding, I would assume it's just your cervix. If it concerns you, see a doc. Or remember to ask at your next annual. It will change slightly as your cycle changes.
A good book to read that has a wealth of information on female issues, is 'The 'V' book' by Dr. Elizabeth Stewart.