Im 26 and 5 months on T and around my 3rd month I start experiencing random sharp pains in my joints and muscles. Its tolerable and annoying for the most part. Has this happened to anyone else? I get them in my shoulders mainly but all over as well.

Well, you mentioned "growing pains" in your post title, but I don't believe that you're having actual bone growth at all at your age.  Are you working out heavily?  Because unless you are, I don't think that you would experience pain from intense gains in muscle.  I have heard that T can make you more susceptible to joint and tendon injuries, but I don't know what the mechanics are behind that.  I haven't experienced this myself, but others may have. 

Yes I lift weights 4-5 days a week. I really dk what it could be then. It comes and goes. Maybe for a minute then leaves. And it's when my body is at rest never during workouts. I also feel the need to always stretch my arms and legs throughout the day. I feel as if they're being compressed. I'll run it by my endo.

Well it may have to do with your workouts - that's good that you'll mention it to your doctor. 

Regarding the "feeling the need to stretch" - that's something that I've heard a lot of guys who start T say they experience.  I can't recall if I ever experienced myself, though. 

I had "growing pains" and some muscle cramps, and other guys around the boards have had similar experiences. You might search for old threads on this if you don't get a lot of responses.