Well for the question "how is it possible" regarding your test levels there isn't one-size-fits-all answer. Clearly the test you're taking works, you are pinning consistently and you're responding well. An individuals response to test elevations in the blood after using it for X amount of time is going to be based on a myriad of factors. Steroidcalc can show some predictive insight on to how stable your levels will be based on frequency, dose, suspension but the question of why or how would difficult to answer however plotting your information on steroidcalc seems to yield similar expected levels. Perhaps someone with a background in endocrinology could offer more insight.
As for your CRP - Yes, inflammation would almost certainly be the cause for the raise however its well within expected ranges from gear use at your stage with the base line of "normal" being 10 or less. Nothing to worry about. Keep doing what you're doing and continue to monitor yourself with bloods and you'll be fine. Keep going!