Hi hope all is well and I apologise if I have offended anyone as that is not my intention. I am a 25 year old male and have had so many scares recently don't know what to do still feeling unwell. For about one year now I have continually suffered with brain fog/lack of concentration, extreme fatigue that I can't get out of bed alot/no energy, poor vision/feel disconnected, can't smell anymore due to blocked nose which I also struggle to breath with, blocked ears with no relief even if I pop and sometimes makes pressure worse, constipation/no urge to use toilet, no hunger or thirst, erectile dysfunction, feel feverish. These symptoms are 24/7 to the point where quality of life has been affected as I feel dizzy when out that I just want to go home. My mood is so low and drift in and out of consciousness. I have had so many tests but all negative these are the tests I've had:

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

1x urine sample all normal

1x ECG all normal 

Dentist check up (looked at everything and said nothing to worry about) - all normal

what more can I do to get body tested I feel like I'm going through a late stage illness but been told if that was case it would of spread and something would've showed by now. I'm sorry if I offended anyone and sorry long message. I'm thinking to get colonoscopy, endoscopy, dex scan and also visit skin clinic. What do you guys think? Thank you