In a word, no.
I wish it was that simple because if it was that simple, then the simple minded approach of most doctors (and most patients) would be worth something. In practice it isn’t that simple, so the simple minded approach most often leads to problems.
In my opinion, you’re half right. You absolutely should be uncomfortable being uninformed. But you’re being naive if you think your doctor is automatically going to give you unbiased (or up to date) information.
In a few days of serious study, you could be MORE educated about TRT issues than most doctors. Get serious my brother. This is your life, your health and your well being you’re playing with here and if you don’t get serious and educate yourself, then you deserve whatever you get.
Consider this… let’s just say that you confront your doctor and he gives you some “information”. If you haven’t done the research yourself, how are you going to know if your doctor is giving you the straight dope, or blowing smoke up your ass? Blind trust as a health strategy is ridiculous.
Here’s my personal litmus test. If your doctor isn’t considering or talking to you about estradiol (estrogen) levels as well as testosterone levels, then he or she isn’t well informed about TRT and you better get yourself educated quickly, because he or she isn’t going to be a source of information that is worth a damn.
You’re right in assuming that taking exogenous testosterone is going to shut down your natural production. However, there are no formulas for how, exactly, this is going to affect you.
The “transition” phase you talk about could be hours or days or possibly weeks, I suppose, depending on how your system is functioning.
The keyword here is SYSTEM. Your body is a complex of interconnected systems and it is ignorant to believe that testosterone alone is the be all and end all of this male hormone thing. I say this because the jumping off point for your research needs to be understanding this important fact.
Estradiol (estrogen) is just as important as testosterone to how you feel and function. Plus, the testes do more than just make testosterone which is why the best results for TRT patients are usually achieved with a combination of testosterone, an aromatase inhibitor, and hCG.
There is a lot of information in this forum about these issues as well as other places on the web, so keep reading, keep thinking critically, and you’ll do fine.
Here’s a page I’ve put together with a lot of sources. The more information you have, the better you will be able to sort the gems from the dross.
http://www.happydog.net/hrtlinks.html
Good luck!