Living with Testosterone Deficiency

I was involved in a car crash where my pelvis was broken in 3 places. The impact of the accident also severed my urethra and crushed my testicles. After a two month stay in hospital, and seven operations, my parts were reassembled in the right order and place, but not without complications. I had a recurring infection in my testicles(the worst pain ever imagined!) for 11 years, that’s right, eleven years! Needless to say, my sexual function(erectile and ejaculatory) were comprimised. I can’t imagine my body is making very much testosterone anymore! I have always worked out at the gym but noticed my strength is far less than before the accident and I don’t seem to be able to increase it anymore. Is this the result of low testosterone? I don’t know, maybe someone can help me undrestand this?