Omron hj 112 Pedometer

First details about myself: I am 18, weight 210 pounds have asthma. I have a family of health freaks and eat only good stuff fruit every night, veggies for dinner, fish, etc.
Since the beginning of last summer, I have had problems getting an erection. This started when my friend punched me in the balls. So i took a shower and tested everything and it was fine. Then the next day i started to feel different, i started having a low sex drive and erection problems. I couldn’t get an erection without masturbating and my interest in sex felt oddly different. So i started to worry. Since at camp i am the digital media technician i had access to a computer and searched a bunch of problems blah blah blah. I also had groin pain. So when i got back from camp i went to the urologist. I had a very nasty uti that took a month and half of antibiotics to get rid of. I told him about the erection problem and said it was probably psychological. I took a bunch of cat-scans and blood tests and a hormone test. They all turned out ok.
So i came home. Still couldn’t get an erection and kept worrying. Now a few months ago i went to a funeral for my cousins grandpa. That day i had terrible unexplainable chest pains and couldn’t breath. I felt dizzy and part of it was probably due to anxiety or emotional stress. Since then i have i haven’t been able to breath well. A week later i started getting chest pains in both my right and left side of my chest. I went to my doctor and he said its nothing just anxiety.
Now, starting a few weeks ago i feel a pressure in my head when i tilt my head back i feel like i am popping bubbles in my head. I sleep for 7-8 hours and am still tired. I also get random tremors around my body. Now, every day since last summer i have been looking up symptoms and problems on the internet and have been asking a bunch of questions on this site lol. Now i want to accept that i am a hypochondriac just so i can get over it. But i worry that i have sleep apnea, anemia or any other disease.
Am i going crazy and becoming way too worried that i am damaging my mental health. Or should i actually be concerned about my health and see another doctor? If this is all due to anxiety. How the hell do i overcome it! I just don’t know. When i masturbate my penis becomes erect but my head of the penis just stays flaccid and if i don’t touch it it just goes back down. How do i overcome this anxiety so i can just be how i used too! I don’t want to live like this.
Please let me know if you think i am good and just need to relax and stay away from the internet. Or if i should go see another doctor. My pediatrician told me i’m healthy, my parents general doctor told me i’m healthy and my urologist told me nothing is wrong. I just don’t know how to overcome these problems.
I am a very socially active guy. I love my life. I have great ambition for my future. I just don’t exercise enough. I don’t want to live as a hypochondriac.
Thanks in advance!

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