The lump and the other symptoms may or may not be connected. It is a good idea to check in with a doctor to be sure. Try ice in a towel to relieve the swelling in the meantime. If you were knocked out when you received the bump on your head, you should be checked and observed for a concussion.
In order to find out that your headache is nothing more than an ordinary headache caused by inflamation head MRI or CT image must be done. This will help to rule out possibility of more serious life threatening condition like brain tumor, brain aneurism.
http://www.tensionheadache.medgrip.com
I don't mean to scare you, but it could be a tumor. Go get medical attention!
probably neurofibromatosis
SEE A DOCTOR!!!
Pythagoras discovered the means for measuring the length of sides of a right angle.
Pythagorus
Pythagoras
Pythagoras discovred it to find unknown sides in a right angled triangle
Naturally Delicious - 2007 Sumptious Sides was released on: USA: 16 September 2007
Pythagoras.
Pythagoras discovered that for any right angle triangle its hypotenuse when squared is equal to the sum of its squared sides.
In a right triangle Pythagoras (a Greek) discovered that the square of the hypotenuse is equal to the sum of the squares of the other two sides.
It is not clear what you mean by "has 4 right sides opposite sides equal". If you delete the phrase "4 right sides", the answer is a rhombus.
Pythagoras proved it, but it may well have been discovered and used before his time.
Pythagoras
A right trapezoid can have no congruent sides and two right angles.