Im 19 years old, 20 in a few months, and 5'10" 139 pounds. I have lengthy arms and maybe legs. I was reading that lengthy arms and legs are signs of delayed puberty. My voice seemed to change a little at age 14, but not deepening or starting to crack. Im now 19 and it is hard for me to speak to groups, give presentations, because this issue has emotionally hurt me and i have developed anxiety from it. Most times when i read in groups, I will try to fully relax, then when im in the middle of reading, i will tense up, my voice starts shaking, and i get very anxious. I think this is because of the emotional stress and self esteem issues that my voice has got me in to. Its hard for me to wear short sleeve shirts. Im athletic, just very skinny. Played 3 years of basketball 7th to 9th grade, 2 years football, and 5 years tennis, and club tennis.(team sports) Its hard for me to sing, whether at church or hanging out, especially because i sound like im 14, cant even get mild low notes, no deepness at all in my voice, and its very hard on me.

Body and facial hair growth is very poor/low on me. Just recently noticed a few dark/thick hairs on my chin. Leg hair just started getting a little darker and thicker on inside of legs, no thigh hair, arm hair is light. I look very young. I can produce semen, and the genitals are in good shape it seems. Its extremely hard, basically impossible to gain weight. I didnt gain anything sitting in my college dorm for 4 months, no real exercise. Just started going to the gym for 3 months, in hopes of gaining weight and muscle.

What ever is wrong with me has been very hard for me. I have become not as social, don't date, never participate in classes, all because of this anxiety that has developed in me, and low depression. I try though to speak and participate. Sometimes i have gone in to some deep depression, but got my self out of it.

I went to get a physical about a month ago, and it was very hard for me to ask questions that i had about my development. This is rediculous, after all im speaking to a doctor who is supposed to help me. Im getting more blood work done in a few days. Should i ask about testing my thyroid, testosterone and hormone levels?
Will my hormone levels determine my illness? I need help and suggestions please.