Hye nice job, fuck the doubter..... Most people use steroids as an easy way out to get a nice body fast, so as soon as they see another jacked up guy, they automatically assume steroids....
i get that all the time too, i had to change my regular doc and when i went for my first physical, he didnt believe i wasnt jucing, he felts my nuts, said they we decent size, he wrote bloodworks and testes my testostrone level and came back slightly higher than normal ( obviously cuz i lift)...
anyway man, anyone who does cardio 1-2 hours a day has enough dedication to stick with his diet and workout day in day out, and you can see the results... fuck the naysayers, take it as a compliment when people assume your jucing, cuz thats the best compliment a natural bodybuilder can get.