Been feeling ill for over 6 months

Hey guys I am 25 year old male and thought I would post as how have tried everything and don't know what to do next. I hope I'm not offending anyone as I do not have a diagnosis's but have become so desperate that would like some advice. I have so many symptoms which is why I'm so worried. I literally feel like I'm slowly drifting away and things are getting worse for me. I also get lightheaded and nauseous. Below I'll list my symptoms and tests I have done.

my symptoms are: 

head pain/brain fog/lack of concentration 

visual disturbance/poor vision at night/perception is very strange

blocked nose and ears (also ears ringing)

lump in throat/swelling in throat

chest pain

heart rate is slower

stomach issues/don't feel urge to go

Erectile dysfunction 

numb and tingling feeling in hands, arms and legs

feverish and tired/night sweats/insomnia

Do not feel refreshed from sleep/food/shower

Body very weak

body does not heal from wounds

 

tests that I have done:

2x testicle examination all normal 

1x blood tests all normal 

1x chest X-ray all normal 

1x eye test all normal

3x blood pressure all normal 

1x anal examination all normal

1x ultrasound for testicles all normal

1x ultrasound urinary tract all normal

1x ct scan chest all normal 

1x ct scan abdomen all normal

1x ct scan pelvis all normal

1x head mri all normal 

1x nasoendoscopy all normal

 

I apologise for posting here but I am desperate as feel like I have something sinister any advice would be amazing. Thank you!