This isn't really true, Michel. Orthodoxy leaves an awful lot of room for personal theological opinions. We even have a word for these: they are called theologoumena. We don't dogmatise anywhere near as much as, for instance, the RCs do. There are, certainly, core doctrines that all must adhere to to be able to claim that they are Orthodox, but then you appear to adhere to the majority of these also, and you certainly aren't Orthodox unless you've recently converted on the quiet.
Even with the core doctrines, it is OK to doubt. It is OK to hold personal views that are contrary to them, even, so long as you are unaware of the fact. Nobody is a heretic in Orthodox thought simply by adhering to a heresy, they must rather know that it is heresy and wilfully choose to follow it nonetheless. I think we allow for an awful lot more doubt than you realise. What we do not allow for, though, which may be where your misapprehension comes in, is for those who doubt to teach erroneous beliefs as doctrine. To do that despite being warned by the Church would be to become a heresiarch. That said, most of us have absolutely no desire to disagree with the Church, even on small details, so you won't see a huge amount of disagreement in the Orthodox community. This is not, however, because we aren't allowed to have doubts but rather because we wish to conform ourselves, voluntarily, to Christ. That seems like a very different phenomenon from what you suggest, though maybe the difference is only really clearly visible from the inside.
James