As said by many others already, IQ tests fluctuate, and are not the best way to judge your intelligence. However, I don't think you CAN measure intelligence by any means of data or scale.
My IQ tends to range around 152. But this is purely genetics, my father's is 165. I know people who I feel overall can think much more abstract than myself, and come to conclusions on things which I would not have thought of; but their IQ's are only around 100-120. IQ simply cannot account for MOST aspects of intelligence, and to me, that makes it about as useful as a Myers Briggs test.
Measuring intelligence is a bit of an impossible task in general, intelligence is too complicated to measure. How can you really decide that one mode of thinking is better than another? It is different, you can't compare apples to oranges because they are not the same thing. Just as you cannot draw a conclusion that straight-forward thinking is better than abstract thinking, or vice versa; both have their uses, and both are important. But they cannot be compared.