Hello. My Name Is Brian. I Was Diagnosed With Testicular

Hello. My name is Brian. I was diagnosed with testicular cancer. I got my testicle removed and took 20 weeks chemo and best my cancer. Since I started my chemo til my last treatment I gained 30lbs. I been done with chemo since Aug. 19. I gained ten lbs. Since then. Weighing in at 271 at 27 yrs old. Since the removal of my testicle til now I have been extreme restless with plenty of sleep. Lack of energy. Srinkage of my testicle. Extremly low sex drive. Also low amount of sperm when ejaculate. I told doctor and he checked my testostrone and he said it was at 348. Told me it was normal and that I need to see a counsler. Sympthoms getting worse.Can I please get a answer. Or at least advice please.