19 year old male, 6’1 and 160 lbs, i’m experiencing shortness of breath, chest pain, body fatigue

about 6 months ago at the start of november 2025, i was experiencing only light shortness of breath. once i really noticed it, i started getting freaked out and googling stuff, which only added to the chaos. about 1-2 months later, the chest pains came to be, but on and off. now with two symptoms, i didn’t know which to focus on, so they would come and go. at this point i was scared out of mind, so i went to the pulmonologist and got an EKG (heart test), a chest xray, and a breathing test to measure how much air was coming and going into my lungs. a month later, (january/february) the tests all came back clear, just a little blockage of the small bronchial tubes in my lungs. fast forward to 2 weeks ago, at the same time i started to feel my legs and arms get really tired from tasks they don’t usually get tired from, (golf, scrubbing rvs at my job). right after i started feeling like it “spread to the rest of my body”, (i don’t even know what “it” is), i got a CT scan from my abdomen, to the bottom of my neck, and THAT came back clear as well. i’m sitting here today in need of answers… im not an anxious guy, but this is really freaking me out. i should mention that all these symptoms come and go and randomly get worse and then randomly get better. please ask me questions i would love to answer them

\- all symptoms listed from when it started to now:

\-shortness of breath randomly (worse with exertion)

\-chest pain

\-chest pain when moving in certain ways

\-chest pain when i turn certain ways

\-chest pain when i breath in but only sometimes

\-when i wake up everything seems to be worse, but as i go on about my day everything resets

\-only when i wake up, when i look down standing up, my lower spine hurts a lot

\-my neck kinda hurts

\- and then recently my body just kinda feels wierd and fatigued (random pains)