If you are timid about asking your doctor about testosterone likely your badly in need of some. Your doctor is just that. She/he isn't your mom or a police officer, a doctor aids you with your health management. There are probably questions out of bounds with a doctor, but not many and testosterone levels are right in with other informed questions to discuss.
Testosterone levels can drop very quickly, even in a teen aged adolescent/young adult, with CF or a similar disease. Ask your doctor to run a serum testosterone test, a blood test like the usual panels they have been doing all your life. Stress hormones like testosterone and cortisol become elevated by illness, pain, injuries and when we anticipate or have to fight or decide to run. CF hits hard on the body and mind and these glands producing stress hormones full bore, full time begin to burn out.
In males with CF, testosterone levels could be within range but barely within range. When your testosterone test results come back you will be put on testosterone if you are low. Be sure to discuss your complaint with your doctor using the same kinds of descriptives like a low libido or sex drive. Ask exactly where your T level is in either case, low or within range. If you are at the low end of normal, your complaints add up to a legitimate issue or argument for augmented T in a prescription like AndroGel.
My T should have been looked at in my late 20s by my estimate looking back. My complaints weren't being formulated to point my doctor at my testosterone. They can offer help only if they understand the problem.
Several people that contribute on this site are body builders. There are a number of body building supliments that will fill part of the bill for filling out. Protein powders and brewers yeast shakes used to spoil the air when my brother was dedicated to having a muscular body. Weights clanking and pulleys heard straining against the basement ceiling followed for a couple hours every day. Starting in 10th grade he wrestled at 123lb weight class by the end of the year he was moved up to 135lb class. Eleventh grade ended at 145lb then his senior year he entered at 154lb and finalled at 165. If only... It was so discouraging except to him. He had purchased a muscle building course that forewarned him it could take months just to ignite his muscle building metabolism. That sounded like bull to me but it was like magic. Four months of no weight gain was rewarded with about a pound a month on average for the year. You are going to develop strength and energy.
This is not something I feel comfortable suggesting because of some extreme results I have seen. Creatine, is a supliment sold in health food stores and such is a testosterone precursor. Taking it will maximize the amount of testosterone in your body. The danger I have worries over are men and women body builders who get hooked on the results it produces and maybe a little dependence physically. Do your homework and research this supliment for safety. If you feel it is alright, discuss taking it with your doctor. Please don't blow off the steps involving your doctor, you need to understand that they aren't there to judge you, they are your resource, utilize them to your benefit. When or if you are, say looking at taking recreational drugs, ask your doctor any questions you want about taking them. Chances are best that your doctor will be frank and non judgmental. Chances are high your doctor will be impressed by your maturity.
Go T!,
LL