Sorry to hear that
Jill andRobin :-( Tough times, indeed. I hope things are better for you both now?
As for your question
Jenn, I haven't taken Testosterone shots. But I was given steroid tablets (of which testosterone is apparently, classed as, as well as being an androgen), when I was 13 in order to speed-up my puberty and kick-start my height growth, as I was lagging behind the rest of the boys. I have absolutely no idea to this day whether this has been part of my being transgender, but I did have my first dream where I woke up & looked female, shortly after beginning the tablets. I started crossdressing when I was 14, which started around half a year after I stopped taking the medication and I started to catch-up with my peers. I'd love to know whether this had something to do with it, as well! (as a side-note I am glad they gave me the steroids even if they did trigger cross-dressing and dysphoria, as I would have been seriously height stunted and probably infertile if I hadn't had taken the drugs).
Most recently, in late 2011, I seemed toe xperience a very sudden and random masculinisation spurt, whereby I put on more muscle, my skin got oilier and thicker, my body hair became thicker and darker, and my hair shed all at once (yep, in big clumps) to be replaced by very thin and brittle hair and a receeding hairline. This happened over a period of a month, and was pretty scary. I also noticed I felt agitated all the time, and a strange sense of unease. Once again, no definitive proof that this is biologically connected with the dysphoria, but it certainly focused my attention on my body and what felt wrong. It triggered me into action to seeking professional help with the NHS.
I should imagine that a brain wired for the other hormone would be essentially fried by being run on the other hormone, so I guess its perfectly logical to theorize that sudden rises in testosterone could have serious emotional and mental effects, which could uncover previously repressed gender issues.
Women's natural cycles produce fluctuating hormones as we know, and these have clear effects on many women, most of which are negative and very much not appreciated. Cis-normative males experiencing low testosterone also report detrimental effects and emotional and mental disturbances. So, Yep, I'd reckon that its very possible that a rise in T can trigger dysphoria, and a sort of self-destruct-sequence, whereby the person knows they can't go on anymore in their current male form.
I just wish there was more scientific evidence, darn it! To stick it in the face of society and provide peace of mind to trans* individuals.