As you will see from this thread
The UK seems to have an issue with this allergy
The facts are unclear
The logic is even more obscure
I havent a clue what happens in Germany BUT are you saying you have been eating peanuts for 10 years with no issues, or you have avoided peanuts for 10 years? If the former, you dont have an allergy. Period. If the latter, it is a simple enough test to see if you are allergic - the degree of allergy will, I suspect be irrelevant as an allergy will be the disqualifying factor. However the result should only take a few days in any hospital
Good luck and let us know what happens - we clinicians are totally bemused about this