whether or not you are obese is almost a subjective opinion. At work, when I am charting on patients, I notice that someone who looks normal to me has been called obese by someone else. You look fine to me, (hard to tell on one picture) but you will have to be careful about developing central obesity, which is much harder on the organs than carrying your weight on your bottom.
I don't think you should put a lot of faith in systems that do not take your muscle or body type into consideration. If you've had your body fat actually measured, that is your most reliable guide.
Relax... I'll need some information first. Just the basic facts - can you show me where it hurts?