Mister, I think we talked about this issue before and at the time my recommendation was nutritional changes. Let me summarize what I believe may be happening.
We know that the testosterone injection is the precipitating factor but it may not be alone or the actual testosterone causing a problem. In medicine we must first respect that each person has a somewhat unique physiology. You say you had low T but was that free or total? How much are you converting to estradiol and DHT? In addition was it low because you were using a low dosage or your body is changing it away from testosterone? Your best way to judge if your levels are too low for you is how you are feeling in addition to having enough estrogen to prevent problems. If you have morning wood, things are probably good. I merely mention this because you may suffer less with a lower dose if you are happy with the changes. Not everyone's bodies are meant to have high testosterone.
Now we must look at the effects testosterone can have. You are likely to have fluid retention, lipid and electrolyte imbalances all of which can effect the muscles. You muscles, ligaments, bone and other tissues grow at different rates and increases your risks of injury and cause growing pains. If the pain is solely related to dosage changes and resolves after your body stabilizes to the new levels this is most likely the cause.
If it continues despite your body being otherwise stable at this dose (think acne, anxiety/depression or other health issues) then you have to find the imbalance and correct it. I don't know what that will be for you but short of lowering the dose or enduring the pain, I know of no other route.
You might be helped with activities like yoga, massage, meditation, heat or cold therapy, physiotherapy, swimming or walking. If all else fails there are medications you can use to treat them ranging from ibeprofen to prescription medications. All efforts should be focused on short term treatment (i.e. stop pain and tissue damage) and figuring out the cause.
At this point I would like to invite you to take your discussion over to the hypergonaldism group at yahoo groups. I doubt that your answer will be found here at susans because we are limited in our discussions. The yahoo group has thousands of people, some of whom are endocrinologists, who have a massive amount of knowledge in dealing with HRT treatments. The group is wonderful and has much to offer in terms of experience and the freedom to discuss anything from dosages to alternative HRT with some of the most knowledgeable folk. I am out on the list under this name and have met nothing but kindness and support. They may be able to help you.
Finally the doctor is wrong to ignore your complaints. I would begin a search for a doctor you trust, who is knowledgeable and will listen to you. Otherwise please return to your doctor and insist to be taken seriously. There are a number of ways to deal with this and the worst is ignoring it.
->-bleeped-<-boy